SOME
MAIN
PROBLEMS
OF
PHILOSOPHY
BY
GEORGE
EDWARD
MOORE
O.M.,LITTJX,HON.LLJ).,F.B.A.
EmeritusProfessor ofPhilosophy
andFellowof Trinity College
inthe University ofCambridge
LONDON
GEORGE
ALLEN
&
UNWIN
LTD.
FERST
PUBLISHED
IN 1953
This booh
is copyrightunder
theBerne
Convention.
Apart from any
fair dealingfor
thepurposes
of
private study, research, criticism or review,
as
permitted
under
theCopyright Act,
1911,no
portionmay
be reproduced
by
any
process zoithout writtenpermission.
Inquiry
should
bemade
to thepublishers.
PRINTED
IN GRJEATBRITAIN BY
When
Iurged ProfessorMoore
topublish these lectureswhich
he gavesome
fortyyearsago he said tome
'But surely they are out ofdate.' Certainlythey are outofdate. Moore's
own
work
inphilo-sophy
over thesefortyyears isby
itselfenough
to renderthem
outofdate.
Anyone
hearing theselectures atthetimetheywere givenmight
have guessedthattheywould
soonbeout ofdate.For
intheselecturesphilosophyis
done
withadirectnessand
honestyand
inci-civeness
which
atoncegiveshope
thatwe
may,working withMoore,
soon cut a
way
out of the jungleintothelight. Itis thesame hope
we
feltwhen
we
readwhat
we
stillread Moore'sPrincipiaEthicaand
his Philosophical Studies.That hope was
justified.Amongst
theproblemswhich
agitate philosophers there aretwo
which, I think, strikethe non-philosopher as especiallyremote, as typically frivolous.
They
aretheproblem
of theexternalworldand
the
problem
of generalideas.When
the philosopher asks'Do
we
reallyknow
what
things aregood and what
are bad?',when
he asks'What
is goodness?' theplain
man
sympathizes.When
the philosopher asks'Do
we
reallyknow
of the existence ofmind
?J
'How
do
we
know
the past?''What
do
we
mean when we
speakof consciousness or ofwhat no
longerexists?'theplain
man may
stillmanage
tosympathize.But
when
the philosopher asks'Do
we
reallyknow
that thereis bread hereand
now
in ourmouths
?''What do
we
mean when
we
speak of chairsand
tables?' then thewhole
thing is apttoseem
ridiculous to the plainman.
And
when
the philosopher then asks'What
is it tomean
any-thing?''What
isittohavea general idea ofanything?''What
is ittohavea universal before themind,to noticeitspresenceinsomething beforeone?'
'What
is itforaquality tobepresentin thisand
alsoin that?1thentotheplainman
itseemsthatthe philosopherisgettinghimself into a difficulty
by
asking for the reduction to somethingmore
simple ofwhat
couldn'tbe
simpler.Moore
manages
to present these central, limiting, typicalprob-lemsinsucha
way
that the reader inspiteof himself beginstofeelthem.
And
withoutthis feelingof the difficultytherecanbe no
fullunderstanding of
what
it is toremove
it.The
idea that there isFOREWORD
much
can bedone
about it.For
this reason alone Moore'sintro-duction to philosophical difficulties can help us tojudge
and
tounderstandthe
most
modern
attemptsto resolvethem*But
further theruthlessclaritywith
which
Moore
shows
usthepathless junglebefore us helps us to realize
what must
bedone
to get through.There
isno
path.We
must
cutaway
from
treeto tree.Itoftenhappens of coursethatone cannottell
where
one wishesto
go
until one starts.But
there are timeswhen
it is timelytoask'Now
where
am
I trying to go?'Moore
has alwaysreminded
us ofthis.
One
thinghehasalwayssoughttokeep beforeusisthediffer-encebetweenquestionsasto
what
isactuallythe case
and
questions astowhat
itislogicallypossibleshould bethecase, the
meanings
ofour
words
beingwhat
theyare.Inhim
toowe
finda habitofthoughtwhich,carriedfurther
by
Wittgenstein,led toenormous
advancesthe study of the
meaning
of general termsby
consideration ofconcretecases.
I
hope
ProfessorWisdom
was
rightin thinking that thisbook was
worth
publishing.ItconsistsoftwentylectureswhichIdeliveredatMorley
College inLondon
in the winter of 1910-11, thefirst tenbeinggiven before Christmas,andthesecondtenafter.
And
IthinkI should have
had
lesshope
thatthey were worthpublishinghad
Inot thought(perhaps mistakenly)that,
though
much
ofthem
isno
doubt
'outof date/ yettheyalsocontainmuch
which
isas yetby no
means
outof date.My
audience were invited aftereach lecture to raise questionsabout
what
Ihad
said in it,and
it is to one of the resulting dis-cussionsthatthefirstsentenceofChapterXV
refers.The
lectures arenow
printed substantiallyin theform
inwhich
they
were
delivered. I havemade
agood
many
verbal changes, substitutingforanexpressionwhich
Iusedinthelecturesanother expressionwhich
Inow
think expressesmy
meaning
better.But
Icould not
make
such changes everywhere:my
-oldterminologystillappears in
many
places;and
I have therefor^a^ded footnotesex-plaining
where
Inow
thinkittobeincorrect, fn
ChaptersXIX
and
XX,
however,Ihavemade
more
extensivedie/rations,though
onlyby
omission omission ofseveralpages,which
seem
tome
now
both confusedand
confusingand
nottomake
any'substantialaddition towhat
Iwas
saying.Ihave,therefore, I believe,retained the substanceeven of these
two
chapters,and
haveadded
anAppendix
toexplainwhat seem
tome
tobe thechief defects inwhat
I haveretained.I
am
wellawarethatthere areagood
many
positivemistakes inwhat
ishere printed;and
thereisbesidesagood
dealofrepetition,since I often repeated atthe beginning ofalecturepart of
what
Ihad
said inthe precedingone, hoping, insome
cases, tomake
my
meaning
clearer.There
aretwo
matters aboutwhich
I should haveadded
foot-notes,
had
I noticedthem
earlier;and
I should like to mentionthem
briefly here.The
first istheviewwhich
I expresson
p. 128, thatit is possible thatsome
material objects occupy merelypointsorlines orareas. This
now
seemstome
to be a completemistake :nothing,Ishouldsay,can
be
properlycalled either amaterial thing or a part of a materialthing,unlessitoccupies avolume
though, of course, thevolume
may
beextremelysmall.Thispointis,ofcourse,xii
PREFACE
connected with
my
mistake (pointedouton
p. 34, note 2) in sup-posingthata surfacecanbe
properlycalled a "part" of a material thing.The
secondpointaboutwhich
Ioughttohaveadded
afoot-noteconcerns therelationbetween
what
Isayaboutpropositions in ChapterIIIand what
Isayaboutthem
in ChapterXIV,
pp. 265-6,and
againinXVII,
p. 309. InIII, p. 56, 1say ''Therecertainlyare in the Universe such things as propositions", whereas inXIV
(p. 256)IsaythatI
am
recommending
aview abouttheanalysisofbelief
which
may
beexpressedby
saying"There
simplyareno
suchthings as propositions",
and
inXVII
(p. 309) I say "I don'tnow
believe thatthere aresuchthings aspropositions at all".
Now
this looksasif,when
IwroteXIV
and XVII,
Ihad abandoned
the veryview
which
inIII Ihad
declaredtobecertainlytrue;and
certainlyI had, ifin III I
had
been usingthe expression 'Thereare suchthingsas propositions' inthe
same
senseinwhich
Iwas
usingitinXIV
and
XVIL
But
Inow
feeldoubtfulwhetherinIII Ihad
beenusingthatexpressionmerelyin thatsense. Ithinkitispossible that
in IIII
was
usingit,partly atleast,insuch asensethatthe truthofwhat
it expresseswould
followfrom
themere
fact that such ex-pressionsas'Ibelievirthe proposition thatthesunislargerthanthemoon*
are perfectly correctways
of expressing somethingwhich
isoften true astfyeycertainly are;whereasin
XIV
and
XVII
Iwas
using 'There are suthTthings as propositions* in a
way
which
isperhaps
more
doubtfullycorrect,namely
insuchaway
thatitwould
notexpress a truth unless suchexpressionsas'I believethe
propo-sitionthatthesunislargerthanthe
moon'
canbecorrectlyanalysedin acertain
way
which
isaverydifferent usage.Itis perhaps
worth
mentioning that ChaptersI-X
are the'un-published writings' ofmine, to
which Lord
Russell refers in the PrefacetoThe
Problems ofPhilosophy.I should like
finally to acknowledge very gratefully
my
obli-gations to the Editor of the
Muirhead
Library, ProfessorH. D,
Lewis.
He
not only tookupon
himself the labour ofsuggestingtitlesfor
my
Chapters titles
which
Iwas
only too gladtoadopt,with one or
two
slight alterations;he
alsomade
such
alterationsatthe beginning ofeach lecture as
were
necessary toadapt it for
book-form
; and,finally,by
taking the trouble toread through thewhole
of the page-proofs,he
discovered misprintswhich had
escaped
my
noticeand which would
have disfigured the book.FOREWORD
page
ixPREFACE
xiI
What
isPhilosophy?
iII
Sense-Data
28
ffl
Propositions 5
2
IV
Wajs
oj
Knowing
7
2
V
Hume's
Theory
89
VI
Hume's
Theory
Examined
108
VH
Material
Things
127
Vffl
Existencein
Space
145
DC
Existencein
Time
,164
X
The
Notion
of
Infinity182
XI
IsTime Real?
201
XH
The
Meaning
of
'Real*216
XIII
Imagination
and Memory
234
XIV
Beliefs
and
Propositions252
XV
True
and
False
Beliefs
270
XVI
Being,
Fact
and
Existence288
XVH
Truths
and
Universals
36
XVin
Relations,Properties
and
Resemblance
321
XIX
Disjunctive
and
Other
Properties33^
XX
Abstractions
and
Being
353
APPENDIX
374
Chapter
IWHAT
ISPHILOSOPHY
?Iwant,asastart,to try togive
you
a general ideaofwhat
philosophyis: or,inother words,
what
sortof questionsitisthatphilosophersare constantlyengagedindiscussing
and
tryingtoanswer. Iwant
tobeginin this
way
fortwo
reasons. Inthefirstplace,by
doingthis, Ishall
be
givingyou
some
idea ofwhat
the problems arewhich
Imyself
mean
todiscuss intherestofthiscourse.And,
inthesecondplace, I thinkitis the best
way
ofbeginning any discussion of themain
problems of philosophy.By
attemptingtogive, first ofall, a
general sketch oroutlineof the
whole
subject,you
point outhow
the differentseparateproblemsareconnected withoneanotherand
cangive abetteridea oftheirrelativeimportance.
I
am
going, then, first ofall to try tp give a description of thewholerangeof philosophy.
But
thisisnotatallaneasythingto do. Itisnoteasy, because,when
you
come
to lookintothe matter,you
find that philosophershavein fact discussedanimmense
varietyof different sortsof questions;and
itisverydifficultto giveanygeneraldescription,
which
willembrace
allof thesequestions,and
alsoverydifficulttoarrange
them
properly inrelation tooneanother.Icannothope
really todo
more
thanto indicateroughlythemain
sorts of questionswithwhich
philosophersare concerned,and
topoint outsome
of themost
important connections between these questions.Iwill try to begin
by
describing those questionswhich seem
tome
tobe
themostimportantand
themost
generally interesting,and
willthen go
on
tothosewhich
aresubordinate.To
beginwith,then,itseemstome
thatthemost
importantand
interestingthing
which
philosophershavetried todo
isno
lessthanthis;
namely
:To
give a generaldescription^thewfypleofthe Uni-verse, mentioningalltiie
most
jmpofl^nt
^^
n "^^JTiy^iwmitih'jjknow
to "beSTiC
^SjC^g^yy
fatfr j*-Ifc^Y-flhat fhg*r,aT: ...^J*impof&iitkinds of thingswhiclrwejjojjflkabfiolutelyjtf^ bein
"
'"
*; ..
variouskinds of things arerelated tooneanother. Iwillcallallthis;
hence willsay that the first
and most
importantproblem
ofphilo-sophyis:
To
givea general description of thewholeUniverse.Many
philosophers (though
by no means
all)have, Ithink, certainly triedto givesucha description:
and
the verydifferentdescriptionswhich
different philosophershavegiven are,I think,
among
themost
im-portant differences between them.
And
theproblem
is, itseems
tome, plainlyone
which
is peculiar to philosophy.There
isno
other sciencewhich
tries to say:Such and
such kinds of things are theonly kinds of thingsthatthereare inthe Universe, or
which
we know
tobeinit.And
Iwillnow
try toexplainmore
clearly,by
means
of examples,exactlywhat
Imean
by
thisfirstproblem
exactlywhat
Imean
by
a general description of the whole Universe.Iwilltry,thatis, tomentionthe
most
importantdifferencesbetween
thedescrip-tions given
by
different philosophers.And
I wish, for a particularreason, to begin in a particular way.
There
are, itseems
tome,
certainviewsaboutthe nature of the Universe,
which
areheld, now-a-days,by
almosteverybody.They
aresouniversallyheld thattheymay, Ithink, fairlybe calledtheviewsof
Common
Sense. Ido
notknow
thatCommon
Sense canbe
said to haveany
views aboutthe wholeUniverse:none
ofits views, perhaps,amount
tothis.But
ithas, I think, very definiteviews tothe effect that certain kindsof thingscertainly are inthe Universe,
and
astosome
oftheways
inwhich
these kinds of thingsare related toone another.And
I wishto begin
by
describing these views,becauseitseems
tome
thatwhat
is
most
amazingand most
interestingabouttheviewsofmany
philo-sophers,istheway
inwhich
theygobeyond
orpositivelycontradict theviews ofCommon
Sense:theyprofess toknow
that there areintheUniverse
most
importantkinds ofthings,which
Common
Sensedoesnotprofess to
know
of,and
alsotheyprofesstoknow
that there are not in theUniverse(or,atleast,that,ifthereare,we
do
notknow
it), things of the existence of
which
Common
Senseismost
sure, Ithink, therefore,
you
willbestrealisewhat
these philosophicaldes-criptionsof theUniversereallymean,
by
realisinghow
verydifferent theyarefrom
theviewsofCommon
Sensehow
far,insome
points,theygo
beyond
Common
Sense,and
how
absolutely, in others,theycontradictit.Iwish,therefore, tobegin
by
describingwhat
Itake tobethe
most
important viewsofCommon
Sense:thingswhich
we
allrommonly
assume
tojbe trueabouttheU^erse^
and which
we
aregurediat
we Eaow
tobetjueaEoutit."
^xiTBe^nwith,
then,itseemstome
we
certainly believethatthereareinthe Univereg
eno^^i^jmTnK^^
WHAT
ISPHILOSOPHY?
3
-
We
know,for instance, thatthereareupon
thesur-faceoftheearth, besides our
own
bodies, the bodies ofmillions of othermen
;we
know
that there arethe bodies ofmillions of otheranimals; millions of plants too; and, besides all
these, an even greater
number
of inanimateobjects mountains,and
allthe stonesupon
them,grains of sand, different sorts of mineralsand
soils, allthe drops ofwater in rivers
and
inthe sea,and
moreover ever somany
different objectsmanufacturedby
men
;housesand
chairsandtables
and
railwayengine^^t;q., etc. But, besides all these things
upon
thesurfaceoftheeartttfghereistheearthitself anenormous
,S*aS&*tfj3i3S'
And
we
believetoo,nowa3ays^tKaftKTeartE*itself,and
all thatis initorupon
it,huge
asit seems tous, is absurdlysmall in comparison with the whole material Universe.
We
areaccustomedto
Ay TcS-^t
j]j^
number
ofvisible stars,areeachofthem
gr^rm^es'oT
matter]"Sa3"most
ofthem many
tirn6?^l^j^^ti^^^hl
We
are iaccustbmeH,too, tothe ideatiat^th^are^^t^t^dat,such,huge;
distances
from
us thatanydistancefrom
pointtopointupon
thesurfaceof theeartE'is" absurdly small in comparison. All thiswe
now
believe about the materialUniverse:itissurelyCommon
Senseto believeit all. But,as
you
know, therewas
atimewhen
itwasby no means
Common
Senseto believe
some
of these things:therewas
atimewhen
nobody
believed
some
of them.There was
a timewhen
there were not nearlysomany men
upon
the earthasthere arenow
;and
when
thosewho
wereupon
itdidnotknow
how
many
there were.They
believed only in the existence of a comparatively smallnumber
ofhuman
bodies besidetheir
own
;ofa comparatively smallnumber
of animalsand
plants;and
theyhad no
ideahow
largethesurfaceof the earthwas.
They
believed, too, thatthe heavenly bodieswere smallcom-pared to the earth,
and
at comparatively short distancesfrom
the earth. But I think Iam
rightin sayingwe
now
believe that these primitive views aboutthe material Universewere certainly wrong.We
should say thatwe
know
thattheywerewrong
:we
havedis-covered that they were
wrong: and
this discovery is part of ourprogressinknowledge.
But
thoughtherearethussomethingsaboutwhich
the'dews ofCommon
Sense have changed:yet,sofar ascon-cerns the point that there are in the Universe a great number of materialobjects,ithas,sofaras
we
know, remainedthe same.So
faras
we
know,men
have believed this almost as long as they havebelieved anything: theyhave always believed inthe existenceofa
4
SOME MAIN PROBLEMS
But,now,besides materialobjects, we^b^Levejlsothiatthere are
in the Universe certain
phenomena
very differentfrom
materialTJEjje^^
we
.men, Besides having bodies,*^6
Haye^mm&;
and
one of the chief things whichwe
mean,by
saying
we
have winds, is, I think, this:jiai^lYi foat
we
performcertainjoaentalacts oracts ofspaciousness^
That
istosay,we
see"'and
hearandfeeland remember
and imagine andthinkand
believeand
desireandlikeand
dislikeandwilland
loveand
areangryand
afraid, etc.
These
thingsthatwe
do
are all ofthem
mental actsacts of
mind
or actsofconsciousness: wheneverwe
do anyofthem,we
areconscious ofsomething: each ofthem
partly consists inourbeing consciousofsomethingin
some
way
orother:and
itseemstome
thatthe thingofwhich
we
aremost
certain,when we
saywe
are certain thatwe
have minds,isthatwe
dothese things thatwe
per-formtheseactsof consciousness.
At
alleventswe
are certain thatwe
do
performthem and
that these acts are somethingvery differentfrommaterial objects.
To
hearisnotitself*materialobject,howevercloselyit
may
berelated to certain material objects;and
soon
withall the rest seeing, remembering, feeling, thinking, etc.
These
things, these acts of consciousness are certainly not themselves materialobjects.
And
yetwe
are quite certain thatthereareimmense
numbers
ofthem
in the Universe. Every one ofus performsim-mense numbers
ofthem
everydayand
alldaylong:we
areperpetu-ally seeing different things, hearing different things, thinking of different things,
remembering
different things.We
ceasetoperformthem
only whilewe
are asleep,withoutdreaming;and
evenin sleep,so longas
we
dream,we
areperformingactsof consciousness.There
are,therefore, inthe Universeatanymoment
millionsofdifferent actsofconsciousnessbeingperformedby
millionsofdifferent men,and
perhapsalsoby
many
kinds ofanimals. It is, Ithink, certainlyCommon
Sensetobelieve allthis.So
far,then,we
haveseenthatCommon
Sensebelieves thatthere are inthe Universe,atleasttwo
differentkinds ofthings.There
are,tobeginwith,
enormous numbers
ofmaterial objects;and
therearealsoa verygreat
number
ofmentalactsoractsof Consciousness.But
Common
Sensehasalso, Ithink, certainverydefiniteviewsas tojtheway
inwhichthesetwo
kinds ofthingsarerelated toone an-other.But, before
I
explainwhat
theseviewsare,Tmust
fcratmention something whichwe
believe tobetrue of absolutelyallthematerial objectswhichIhave mentioned and, indeed, not only ofthem
butWHAT
ISPHILOSOPHY?
We
believe, infact,ofallmaterialobjects,thateachofthem
isany
givenmoment,
situatedsomewhere
orother in s^meffiKg'iraiJUT. J-a
-i .
-
-I
- --? - -. .-vi.: ..--<-r-^***--*-^*^ ,^ , .,
-Q.-^,.\-we
caUjQgg.
And
by
sayingthattheyareall ofthem
in space,we
mean,
I think,atleasttwo
things.We
mean,inthefirstplace, thateachof
them
is,atanygivenmoment,
atsome
definitedistancehym,^Jjh^rest. It
may
be
impossible practically to measure all these distances,orindeedtomeasure
anyofthem
absolutelyexactly:butwe
believe that all ofthem
could theoretically be measured,and
expressed as so
many
miles or feet or inches, or suchand
such a fraction ofan
inch,down
to those objectswhich
are absolutelytouching one another,
and
betweenwhich
thereforethedistanceisnothing at all.
We
believe, for instance, that the earthis (roughlyspeaking) so
many
millions of miles distantfrom
the sun in one direction,and
many
more
millions ofmiles distantfrom
the pole-star in another;and
that just as there is, atany
givenmoment,
adefinite distance between the sun
and
the earth,and
between the pole-starand
theearth, so thereisalso adefinitedistance betweenthe
sun and
the pole-star,and
similarly between any one of theheavenlybodies
and
alltherest.And
so toobetweenallthe bodieson
the surface of theearth, oranypartsof thesebodies:anytwo
ofthem
are,atany
givenmoment,
eithertouching oneanother, orelse atsome
definitedistancefrom
oneanother a distancewhich
canbe
roughlyexpressedasso
many
miles orfeetorinches orfractionsofan
inch.We
believe, then, thatitistrueofallmaterialobjects thateachis,at
any
givenmoment,
atsome
definitedistancefrom
alltherest. Thisisoneof the things
which
we mean
by
sayingthattheyareallin space.
But
we
mean, I think,alsothateachis distantfrom
alltherest in
some
direction or other:insome
oneor other of a quitedefiniteset ofdirections.
And
what
thisdefinite setofdirectionsis,can,Ithink, beeasilyexplained.
We
allknow
theshapeofthefigurewhich
is calleda sphere theshapeofaperfectlyround
ball.Now
from
the centre of a sphere astraight linecanbe
drawn
toeach of the pointsupon
itssurface.Each
of thesestraight lines,we
shouldsay,ledinadifferent direction
from
the centre:thisiswhat
we mean
by
adirection.And
moreoverthereare,we
shouldsay,absolutelyno
directionsinwhich
it ispossibletomove
from
the centreinastraightline exceptalong oneor other of these straight lines; if
you
aretomove
inastfaight linefrom
the centre ofasphereatall,you must
gotowardsoneor other of the points
on
itssurface;and
thisiswhat
Imeant by
speaking of a quil;e definite set of directions: all thegiven point
form
a quitedefinite set;namely,you must
goalongone
or other of thestraight linesleading
from
that pointtosome
pointon
the surfaceofa sphere ofwhich
itisthecentre.The
secondthing,then,
which
Isaywe
believeaboutallmaterial objects:isthatstart-ing
from
anypointon any
oneofthem,alltherestwilllieupon
oneor other ofthis definite setofstraightlines. If
you
considerallthe straightlineswhich
leadfrom
anypointtoallthedifferentpointson
thesurfaceofasphere enclosingit,absolutelyevery material object in theUniverse will, at
any
givenmoment,
lieon
one or other of thesestraightlines;itwilllieatsome
distanceorother alongoneorother ofthem.
There
is,we
shouldsay,no
other position in spacewhich
any material object could occupy; these straight lines willpassthroughevery position in space;sothat,ifanobjectisinspace
atallit
must
beon
one or other ofthem. This,therefore, isone
of the thingswhich
we
mean
by
saying that all material objects are situated in space.We
mean,
that is,when we
talk ofthe space inwhich
material objectslieand
move, a spaceinwhich
there areno
otherdirections in
which you
can gofrom
any point, except thosewhich
I have specified.We
do, I think, certainly hold that all thematerialobjectsIhave mentioned, dolieinsucha space:that
from
any
oneofthem
alltherestmust
atanymoment
lieinoneor otherof thesedirections.
And
when we
talkof'material objects',we
mean,I think, as arule, only to includeunderthis description objects of
which
thisistrue.But, now, I introduced this account of
what
we
believe aboutmaterialobjects, inordertoexplain
what
we
believeaboutthej^/fl^tim
of materialobjects t? tfmt
Q^er
quite flffrrant sort frftKmgg,*
Common
_
Sensehas,I said,
some
quite definiteviews abouttheway
inwhich
actsof consciousnessingeneralare related to materialobjects,
and
Iwish
now
tostatewhat
theseviewsare.We
all,then,commonly
believe,Ithink, that actsof consciousnessare quite definitely attached, in aparticular
w^
ff>Mn^-^tffflT
gblects, an<J quite?g_f^fiBittfy..T)ifttafteMtoVr^^
And why
Iintroduced
my
account ofspace,was
inordertomake
more
clear inwhat
sensewe
believe actsof consciousnesstobeattachedto certain materialobjects.We
believe, Ithink, thatouractsof consciousnessallthose
which
we
perform, so longaswe
are alive areattached toourbodies, inthe sensethatthey occurinthesame
places inwhich
ourbodiesare.
We
alldo,Ithink,constantlyassume
thisinordinaryWHAT
ISPHILOSOPHY?
7most
philosophershaveheldthat,on
thecontrary, actsof conscious-nessdo
not occurinanyplaceatall thattheyare,simply,nowhere notin space. Butthat
we
all docommonly
assumeit, thatitis a belief ofCommon
Sense, is, I think, pretty plain. I believe, forinstance, that
my
actsof consciousness aretaking placenow
in thisroom,
where
my
body
is.At
the presentmoment
Iam
hearingand
seeing
and
thinking here, in this room.And
when, just now, Itravelled
up
to Waterlooby
train, I believe thatmy
mind
and
my
acts of consciousness travelled with me.
When
the trainand
my
body
wereatPutney,Iwas
thinkingand
seeingatPutney.When
the trainand
my
body
reachedClapham
Junction, Iwas
thinkingand
seeing at
Clapham
Junction.And
soon
with all the otherplaceswhich
Ipassed through.We
all, Ii^y^j^qamcmLv
assume
inthis~*
do
notmean
to"ffiaf
we
nave anydefiniteideaas to exactlywhereinourbodies ouractsof consciousness takeplace.Idonot think
we
have.We
should not be prepared to saywhether they all took place at exactly thesame
spotinourbodies orwhetherdifferent actstook placeatdiffer-ent spots; nor should
we
be preparedto assign anyparticularspotas the spot at
which
a particular acttook place. All thatwe
do, Ithink, believewithcertaintyisthattheyalldotake place
somewhere
or otherinourbodies.
At
all eventswe
allconstantlytalk as ifwe
believedthis.
And
Imay
illustratetheforceofthisbeliefwhich
we
now
have,by
contrastingitwith a different beliefwhich was
for-merlyheld.
Some
savages, Ibelieve, usedtoholdthat, sometimeswhen
aman
was
dreaming,hismind
orsoulusedto leave hisbody
and
go tosome
other placeand
watchwhat was
goingon
inthat place:that,therefore, whilehewas
asleep,his actsof consciousness
might betaking placeat
some
place otherthanthatwhere
hisbody
was.Now
IthinkIam
right insayingthatitis
no
longerCommon
Senseto believethis.
We
commonly
believenowadays
that,so longas
we
arealive,we
can, atleastnormally, only thinkand
seeand
hearand
feel,whereourbodiesare.We
believe,atleast,thatanimmense
number
ofactsof consciousnessare attached,each ofthem,tosome
particularbody,inthe sensethatthey occur
somewhere
or otherin that body.My
acts of consciousness takeplace inmy
body; andyourstake placeinyours:
and
ourminds
(generally,atleast)go with
us, wherever ourbodiesgo.
We
believe, then, I think, thatmany
acts of consciousness are attached to particular material objects, inthe sense thatthey takeplace where thoseobjects are.
But
Ido
notmean
tosaythat thisistheonlysensein
which
we
believethem
tobeattachedto particular material objects, ^gealso believe, jno doubt,thatmanj
oftheicaaredegenden^
occurinl>ur bodies.For
instance,1 onlysee,
when
certainchangestakeplace inmy
eyes;Ionlyhear,when
certain changes take place inmy
ears; only think, perhaps,when
certainchangestake placeinmy
brain.We
certainly believe thatmany
acts of consciousnessareattachedto particularbodiesinthis
way
also.Butthe simplestand most
universal relationwhich
we
believe toholdbetweenacts of consciousness
and
particular bodiesis, I think, the one I have mentioned namely, that they occur
wherethosebodiesare.
We
believe,then, that actsof consciousness are attachedtosome
material objects.
But
we
believe, Ithink,no
less certainly, that tothe vastmajority of material objects, no acts of consciousness are attached.
We
believethat theyare attached to thelivingbodies ofmen
millionsofdifferentmen
and, perhaps,ofmost
animals;sothatthereis no lack ofacts of consciousness inthe Universe*
But
nevertheless to thevast
mdority
of material pbjgftftvt frqlieve,JT
'
We
aresurethat chairsand
tablesand
_
dmojinlatos
and
stone^donotreallyseeor hear orfeelor think orperform anyothermentalacts:we
aresurethattheyarenot conscious.
We
are sure too that thesunand
moon
and
starsand
eartharenot conscious that
no
consciousactsareattachedtothem, inthe senseinwhich
ourconsciousactsareattachedtoourbodies:they do not feel or hear or see, as
we
do. This, then, is one veryimportantthing
which
we
believeastotherelationbetweenactsof consciousnessand
material objects: namely, thatamong
the vastnumber
of material objects inthe Universethere arecomparativelyfew
towhich
actsot'consciousnessareattached:inotherworcb^lw
farthe greater
number
of the materialobjects' inthe Universeare unconscious. This, I think,may
fairly be said tobe
the view ofCommon
Sense nowadays. But this is another point in regard towhich
the presentviewofCommon
Sensediffersagood
dealfrom
what
it oncewas.There
was, itseems pretty certain, atimewhen
most
men
believedthat actsof Consciousness were attachedto logs ofwood,and
stones,and
trees,and
tothesunand
moon
and
many
other objects.
They
believedthat spirits were at various timesm
theseobjects;and
thatwhile thespiritswereinthem,actsofcon-sciousness often took placeinside
them:
the spirit heardand saw
and
thoughtinsidethe log ofwood,WHAT
ISPHILOSOPHY?
9and
think inside our bodies.There
was, then, a timewhen
men
commonly
believed that consciousnesswas
(for a time, at least)attachedto
many
bodies,which
we now
believetobeunconscious.But
even then, so far as I know, they always believed that therewere, atanygiventime,
many
places inthe Universe inwhich
no
acts ofconsciousness
were
goingon.We,
Ithink,onlygomuch
far-therthanthis:
we
believethat, atanygiventime,thenumber
of spotsin
which no
act of consciousnessistakingplaceisimmenselylargerthanthat ofthose in
which an
actof consciousnessistakingplace.This,therefore,isonething
which
we
believewithregardtothe relationbetween consciousnessand
material objects.But
thereare, Ithink, alsotwo
otherswhich
deservetobe mentioned.The
firstof these is this.We
believe thatwe
are at certaintimes conscious of certainmaterialobjects:we
see,and
feel,and
think ofthem.But
we
believewiththeutmostcertainty thatthese materialobjectscan
and
do
continueto exist evenwhen
we
are not conscious ofthem.We
are, for instance, atthis
moment
seeingcertain materialobjects in thisroom.But
we
believethattheywillcontinue toexist,evenwhen
we
haveallgoneaway and
theroom
isshutup
forthe nightand no
one
isseeingthem.IfIleavearoom,forfiveminutes,inwhich
afire is burning,and
thencome
backand
finditburningstill, I
assume
thatithasbeen burningallthe whileI
was
away,and
when
no
onewas
seeingitorfeelingitsheat,justasmuch
aswhen
Iwas
thereto see it. ^Kfi^all.objects thattheyare, in this
aenpe whollyinfapenrteflf nfmir n. ^scipusness pi
tnem
;theyarejJloM<%^
gnucli'whiffiw^ lyftyft.
W*
may,incteed, say
of
lattmaterial objects that,thev have threecharacter-: (i)they.ageqyite a difiierstxt sort^ofthing
from
acts ofcon-sciousness; (a)
th^aj^j^ofj^^
situatedsjamSHherpnrxrtheriiLSp&ce;
and
(3)theyjiavej^^jtrope^^which
Ihavejust mentioaed-^aanftdythatthey,are.a sort citbiiifcjyjjdchexists
when
we
arenotcoasqiQUS^fitjust$&niuchjsjwhen
we
are.These
three characteristics are not, I think, sufficient to~3eSneTirmaterial object:there
may
be
otherobjects,which
possessallthreeand
yetarenotmaterialobjects.But
theyare, I think,three of themost
importantcharacteristicswhich
materialobjectshave;and
we
shouldnotcallanything a materialobject,unless
we
meant
to assert thatithad
allthree.A
secondthing, then,which
we
believeabouttherelationof con-sciousnesstomatter,isthatmatteris10
SOME MAIN PROBLEMS
ness ofit thatitexistseven
when
we
are not conscious ofit ;and
we
believe, too, thatthere are existing atanymoment many
more
material objects, of
which no
man
or animal is conscious, than material objects ofwhich
we
are conscious.And
the third thingwhich
we
beKeve abouttherelationofconsciousness tomatteristhefollowing.
We
believernamely,thatthereprobably
was
atimewhen
therewere noactsofconsciousness attachedtoanymaterialobjects
on
ther^wth
:atime,when
the earthwas
so hotthatno
livingBeingscouldexist
upon
it;
and
when
therefore there couldbe no
consciousbeings
on
iteither.And
asregardshuman
bodiesand
human
con-sciousness
we
believe, I think, that this is not only probable, butcertain.
We
believethatit isonlyfor acomparatively limitedtimecomparatively limited,
though
amounting, perhaps, to several millionsof years thatmen
haveexistedupon
the earth:beforethattime, there were
no
bodiesupon
the earthwhich
couldbe
calledhuman, and
alsono minds which
couldbe
calledtheminds
ofmen
;though
theremay
havebeen minds and
acts ofconsciousnessbe-longing to other sorts of animals.
And
just aswe
believethat, atsome
timeinthepast,therewere
probablyno
conscious beingsatallupon
theearth,and
certainlyno
beingswithhuman
consciousness;y
we
believe thattheremav
fflme atiqifrrinthefuture*when
thisbeso.
We
should not indeeddeny
that, evenwhen
therewas
no
consciousnesson
the earth,theremay
havebeen
conscious beings elsewhere inthe Universe,on
other planets;we
shouldriotdeny
thattheremay
be
some
now
;nor shouldwe
deny
thatthismay
stillbe
so,when
(ifever) the time comes,when
all consciousnessupon
the earthisagain extinguished.But
we
should, I think,hold that theremay
have been,and
may
be
again, long periods in the history,ofthe material Universe,duringwhich no
consciousnesswas
attached to any ofthe bodies in it
when
no
conscious acts weretaking place
anywhere
init.We
believe, thatisto say, that justas consciousnesscertainlyisnow
attachedtocomparativelyfew
among
the materialobjectsinthe Universe, so theremay
have beeninthe pastand
may
beagaininthefuture,long periodswhen
itwas
orwillbe
attachedto noneat all.This
is, I think, one beliefofCommon
Sense with regard to the relation of consciousness to material
objects; and, if itbeso, itiscertainlyan important elementinour generalviewof the Universe.
So
far,.then,theelementswhich
IhavetriedtoemphasizeintheCommon
Senseviewofthe Universe, arethese. Firstly,thatthere certainly are jr^tfce U^Yfflffi?,,*^,
V
^tTTnft
fcWHAT
ISPHILOSOPHY?
IIX
namely
i^teli^
secondly,asto therelationof these
two
kinds of things three points:thefirst(i)that conscious,acts jure attached to
comg^tivelj^
few
among
them^erialobjectsinJ&j^jnwerse,;
tJ#3l3#s;t
^ajprit^^matefial^arelmconsciQus^ Jfideed the#nlybodiestp wjiiqhw^sliQuld
We
shouldnotdeny
that theymay
beattachedalsotoother bodieson
otherplanets: that theremay
on
other planets be other livingbeings,which
are conscious.But
we
should, Ithink,saythatconsciousacts certainly are not attachedtothevast majority of the material objects inthe Universe. Thisis one of our beliefs about therelation of acts of consciousness to material objects.A
second is (2) that,material objects areallofsuchakindthattheymay
exist, evenwhen
we
are^^conssioWiSi.of.them,
and
thatmany
etom
fectso exist.And
the thirdis(3)that^the^ww^^hayeJ>epaatipae.whea, arts.olcQG^cious-nesswere
attac^
W
theJt&uyfirse,and
may
againbe
suctua~tuue>and
/that thejcealiaost certainlywasatjmewhen
therew^^np^human
boc|i^K^ij^thujp^,C(msciousnessattachedTo them,ugonj:hisearth.
AndlQow"tKereareonly
two
otherpoints intheviewsofCommon
Sense aboutthe Universe,to
which
Iwishtocallattention.\
The_firstjsonie,which
I haveconstantlyassumed
inwhat
Ihavealreadysaid,but
which
I wishnow
tomentionexpressly. Itisthis.That_all.material
objects,
j^AalLtbiXfl^^
our-selvesand
otheranim^sJJRQn,th^gafl^^
I say 'are in time*;but, tospeakmore
accuratelyIoughttosay.eitherhavebeenintime or areso
now
orwillbeso inthe future:eith^-'iS^or"(Sse^Mpp-^-^.v., -*^.---.^ ---.-,>..
t .v+*-*p--*"+f*+*"Y^'.
-u. -f
W
*vf^r>+m<*t,rntn*r*t-+f.~:^+.allthree both teve
be^ju^
so^now,
and
wOTEey
inthefuturerForjustoneofthe thingswhich
we mean
by
talkingoPtime'is^bat therearesuchthingsasthepast,the present
and
thefuture,andthatthereisagreat differencebetweenthethree.None
ofthemat^ri^^^VrtR
in^pacfr
^
npne
ofoqr ^qtsofcon-at all,Jf*4ffffgiteyists
ciitfu
time^toktchj^w^
only those ofthem,for instance,which
exist attietimeat
which
Iam
now
speakingcannow
betruly saidtoexistatall:of othersit
may
betruethatthey didexistinthe pastorthattheywillexistinthefuture,butitcannotbetruethatthey
doexist.
What
Imean,then,when
Isaythatallmaterialobjectsand
all ouractsofconsciousnessare in time, isthis: thateach of
them
either this, orelse, allthree: bothdidexist at
some
timeinthepast,
doesexistnow, andwillexistinthefuture.
And
Imean,
too, that tosaythata thing 'didexist'is somethingdifferent
from
sayingthatit'doesexist' and boththese again
from
sayingthatit'willexist';and
thateachof thesedifferentstatementsisinfacttrueof
some
things.Iam, for instance, quite surethattherehave beeninthepast
many
actsof consciousness,bothofmy
own
andthose ofothermen
; Iam
quite sure that
many
are existingnow; and
Iam
very certain,though
less certain,thatmany
will existinthefuture.And
sotoo ofmaterialobjects:
many
haveexisted inthepast,
many
do
existnow,and
many
(in allprobability) will existin the future. I say
we
allcommonly
believethatthese thingsareso.We
believe thatthe threestatements 'It didexist'
; 'Itdoes exist*; 'It will exist': are each of
them
true ofmany
materialobjectsandmany
actsof consciousness;the firsttrue of
some
; the second true of others;and
the third ofstillothers; andof
many,
again, allthree.And
we
believe also,thatoneor otherofthese statementsistrue ofallof
them
;eitherthis, orelsein
some
instancesthatallthreeofthem
aretrue ofoneand
thesame
thing: the sun or the earth, for instance, both didexist, doexist,and(probably)will exist. This, Isay, is
certainlythebeliefof
Common
Sense. /pr
^
And
thereisonlyonedthiifrbeliefofCommon
Sensewhich
Iwishtomention:namely,this.
Webdieve
Mthatw^do
really
know
allthese thingsthatIhave mentioned.We
know
thatthereareand
havebeenintheUniversethe
two
kinds ofthings material objectsandactsof consciousness.We
know
that there areand
have been in theUni-verse
huge numbers
of both.We
know
thatmany
material objectsexist
when
we
are not conscious ofthem.We
know
that the vastmajorityof materialobjects areunconscious.
We
know
thatthings ofbothkindshaveexisted inthepast,which donotexistnow, andthat things ofboth kinds
do
exist now,which
did not existin the past. Allthese thingswe
should, Ithink, certainlysaythatwe
know.And
moreover
we
believe thatwe
know
animmense
number
ofdetailsabout particular material objects
and
acts of consciousness, past, present and future.We
know
most, indeed, about the past; but agreat dealaboutthe present;
and
much
also(though perhapsthisisonly probable knowledge) about the future. Indeed the sphere of
most
of the special sciencesmay
be defined asbeing to give us detailed knowledge about
particular objects of the kinds which I
have been trying to define: that is to say, about material objects
WHAT
ISPHILOSOPHY?
13 acts of consciousness of
men
upon
the earth.Most
of the special sciencesconfinethemselvestosome
particulargroupamong
objectsof these
two
kinds;and
we
believe thattheyhavebeen verysuccess-fulin givingusagreat dealofrealknowledge aboutobjectsof these kinds.Astronomy,for instance,tellsus abouttheheavenlybodies their size
and movements and
compositionand
how
theyactupon
one
another. Physicsand
chemistry give us detailedknowledge
about the composition of different kinds of material objects,
and
how
theyand
theirminutepartsactupon
oneanother. Biologygivesus
knowledge
aboutthedifferences betweendifferent kinds ofani-mals
upon
theearth.Botany,aboutthedifferencesbetweendifferentkindsofplants.Physiology aboutthe processes
which
goon
in livingbodies.
Geology
givesusknowledge
aboutthe presentstateand
pasthistory of thedifferent layersof rock orsoilof
which
thecrustof the earthiscomposed.Geography
givesus knowledge aboutthe presentdistributionofland
and
waterupon
the surface of the earth; aboutthe positions ofmountains
and
rivers; aboutthedifferent soilsand
climates ofdifferent parts of theearth. History
and
biographygiveus
knowledge
abouttheactions ofdifferentmen
and
collections ofmen, which
have existedupon
the surface of the earth;and
alsoabouttheir acts of consciousness,
what
sortsof thingstheysaw and
heard
and
thoughtand
believed. FinallyPsychology deals speciallywiththeactsof consciousness of
men
and
tosome
extentofanimalsalso;ittriestoclassify
and
distinguish thedifferentkinds ofmentalacts
which
we
perform,and
to decidehow
these different acts arerelated to one another. All these sciences
which
I havementioned
are,you
willobserve, occupiedexclusivelywithgivingusinforma-tion aboutthe
two
kinds ofobjectswhich
I have triedto definenamely, material objects in space, and the acts of consciousness of
men
and
animalson
the surface of the earth.And
we
certainly believe that allofthem
have succeededinacquiring a great deal of realknowledge aboutobjectsof thesekinds.We
distinguishsharply, in each case, between thingswhich
arenow
absolutelyknown;
thingswhich
were formerly believed, but believed wrongly;and
things
which
we
do not yetknow.
Inthe caseofall thesesciences, thereare,we
believe, animmense
number
of thingswhich
arenow
definitelyknown
to be facts; a greatmany, which
were formerly believed, but arenow
definitelyknown
to be errors;and
a greatmany
which
we
do notknow
and
perhaps nevershall kilow. In allour ordinary talk, in all newspapers
and
in all ordinary books (by14
assume
thatthere is this distinction betweenwhat
we
know, what
we
wronglybelieve,and
what
we
arestillinignorance about:and
we
assume
that anenormous
number
of truths about materialobjects
and
theactsofconsciousness ofmen
belongtothefirstclasstheclassof things absolutely
known
known,
thatis,by some
man
on
thesurface oftheearth. All thisis, Ithink, certainlynowadays
part of thebelief of
Common
Sense aboutthe Universe.Ihavetried, then, toenumeratecertaingeneralbeliefsaboutthe
Universe,
which
may,Ithink,befairlysaid tobebeliefsofCommon
Sense: beliefs
which
we
almostallofusnowadays
entertain;
and
Ido
notmean
tosaythatthesearethe only views ofCommon
Sense aboutthe Universe;butonlythattheyareviewswhich
itdoesholdsome of its principal beliefs.
But
now
all of these beliefs taken together do notamount
to a general description ofthe whole Uni-verse: they are not a generaldescription of thewhole Universe,in the senseinwhich
Isaidthatthefirstproblemofphilosophywas
to giveussuchadescription.They
consistinsayingthattherecertainly are in the Universe certain large classes ofthings,and
that these thingsare related toone another in certainways.But what
theydo
not say, as they stand, is that these large classes of things are the onlyclasses of things
which
are inthe Universe, orwhich
we
know
tobeinit:they donot say that everythingwhich
we know
tobeinthe Universe belongsto
one
or other of these classes; theydo
not deny,astheystand, thattheremay
beinthe Universe, ormay
evenbe known
tobeinit,importantclassesof thingswhich
donotbelongto
any
of the classes I have mentioned. For instance,Common
Sensesays,accordingto
me
:There
areintheUniversetwo
classes of things:There
arematerialobjects in space, andtherearetheacts of consciousness ofliving
men
and
animateupon
thesurfaceof the earth. But, in order to convert these statements into a general description of the whole Universe,we
should have toadd
one or other oftwo
things.We
should havetosayeither:EverythingintheUniversebelongstooneor otherofthese
two
classes; everythingiseithera materialobject in space, oranactof consciousness of
some
man
oranimalon
theearth.And
thiswould
plainly,ifany
onesaidit,professtobeageneraldescription ofthe whole Universe.
Or
elsewe
might say:Everything
which
we
know
to be in the Universe,does
belongtooneor other of these