METAPHYSICS

第47章

starting-point?Ashasbeensaid,therightangleisthoughttobe

priortotheacute,andtheacutetotheright,andeachisone。

Accordinglytheymake1thestarting-pointinbothways。Butthisis

impossible。Fortheuniversalisoneasformorsubstance,whilethe

elementisoneasapartorasmatter。Foreachofthetwoisina

senseone-intrutheachofthetwounitsexistspotentially(at

leastifthenumberisaunityandnotlikeaheap,i。e。if

differentnumbersconsistofdifferentiatedunits,astheysay),but

notincompletereality;andthecauseoftheerrortheyfellinto

isthattheywereconductingtheirinquiryatthesametimefromthe

standpointofmathematicsandfromthatofuniversaldefinitions,so

that(1)fromtheformerstandpointtheytreatedunity,theirfirst

principle,asapoint;fortheunitisapointwithoutposition。

Theyputthingstogetheroutofthesmallestparts,assomeothers

alsohavedone。Thereforetheunitbecomesthematterofnumbersand

atthesametimepriorto2;andagainposterior,2beingtreatedasa

whole,aunity,andaform。But(2)becausetheywereseekingthe

universaltheytreatedtheunitywhichcanbepredicatedofa

number,asinthissensealsoapartofthenumber。Butthese

characteristicscannotbelongatthesametimetothesamething。

Ifthe1-itselfmustbeunitary(foritdiffersinnothingfrom

other1’sexceptthatitisthestarting-point),andthe2is

divisiblebuttheunitisnot,theunitmustbelikerthe1-itself

thanthe2is。Butiftheunitislikerit,itmustbelikertothe

unitthantothe2;thereforeeachoftheunitsin2mustbeprior

tothe2。Buttheydenythis;atleasttheygeneratethe2first。

Again,ifthe2-itselfisaunityandthe3-itselfisonealso,both

forma2。Fromwhat,then,isthis2produced?

Sincethereisnotcontactinnumbers,butsuccession,viz。

betweentheunitsbetweenwhichthereisnothing,e。g。betweenthose

in2orin3onemightaskwhetherthesesucceedthe1-itselfor

not,andwhether,ofthetermsthatsucceedit,2oreitherofthe

unitsin2isprior。

Similardifficultiesoccurwithregardtotheclassesofthings

posteriortonumber,-theline,theplane,andthesolid。Forsome

constructtheseoutofthespeciesofthe’greatandsmall’;e。g。

linesfromthe’longandshort’,planesfromthe’broadandnarrow’,

massesfromthe’deepandshallow’;whicharespeciesofthe’great

andsmall’。Andtheoriginativeprincipleofsuchthingswhichanswers

tothe1differentthinkersdescribeindifferentways,Andinthese

alsotheimpossibilities,thefictions,andthecontradictionsof

allprobabilityareseentobeinnumerable。For(i)geometrical

classesareseveredfromoneanother,unlesstheprinciplesofthese

areimpliedinoneanotherinsuchawaythatthe’broadandnarrow’

isalso’longandshort’(butifthisisso,theplanewillbeline

andthesolidaplane;again,howwillanglesandfiguresandsuch

thingsbeexplained?)。And(ii)thesamehappensasinregardto

number;for’longandshort’,&c。,areattributesofmagnitude,but

magnitudedoesnotconsistofthese,anymorethanthelineconsists

of’straightandcurved’,orsolidsof’smoothandrough’。

(Alltheseviewsshareadifficultywhichoccurswithregardto

species-of-a-genus,whenonepositstheuniversals,viz。whetheritis

animal-itselforsomethingotherthananimal-itselfthatisinthe

particularanimal。True,iftheuniversalisnotseparablefrom

sensiblethings,thiswillpresentnodifficulty;butifthe1andthe

numbersareseparable,asthosewhoexpresstheseviewssay,itisnot

easytosolvethedifficulty,ifonemayapplythewords’noteasy’to

theimpossible。Forwhenweapprehendtheunityin2,oringeneralin

anumber,doweapprehendathing-itselforsomethingelse?)。

Some,then,generatespatialmagnitudesfrommatterofthis

sort,othersfromthepoint-andthepointisthoughtbythemtobe

not1butsomethinglike1-andfromothermatterlikeplurality,but

notidenticalwithit;aboutwhichprinciplesnonethelessthesame

difficult

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