下载辰思小说免费APP
Ofthingswhichchange,somechangeinanaccidentalsense,like
thatinwhich’themusical’maybesaidtowalk,andothersare
said,withoutqualification,tochange,becausesomethinginthem
changes,i。e。thethingsthatchangeinparts;thebodybecomes
healthy,becausetheeyedoes。Butthereissomethingwhichisby
itsownnaturemoveddirectly,andthisistheessentiallymovable。
Thesamedistinctionisfoundinthecaseofthemover;forit
causesmovementeitherinanaccidentalsenseorinrespectofa
partofitselforessentially。Thereissomethingthatdirectlycauses
movement;andthereissomethingthatismoved,alsothetimeinwhich
itismoved,andthatfromwhichandthatintowhichitismoved。
Buttheformsandtheaffectionsandtheplace,whicharethe
terminalsofthemovementofmovingthings,areunmovable,e。g。
knowledgeorheat;itisnotheatthatisamovement,butheating。
Changewhichisnotaccidentalisfoundnotinallthings,butbetween
contraries,andtheirintermediates,andbetweencontradictories。We
mayconvinceourselvesofthisbyinduction。
Thatwhichchangeschangeseitherfrompositiveintopositive,
orfromnegativeintonegative,orfrompositiveintonegative,or
fromnegativeintopositive。(BypositiveImeanthatwhichis
expressedbyanaffirmativeterm。)Thereforetheremustbethree
changes;thatfromnegativeintonegativeisnotchange,because
(sincethetermsareneithercontrariesnorcontradictories)there
isnoopposition。Thechangefromthenegativeintothepositivewhich
isitscontradictoryisgeneration-absolutechangeabsolute
generation,andpartialchangepartialgeneration;andthechangefrom
positivetonegativeisdestruction-absolutechangeabsolute
destruction,andpartialchangepartialdestruction。If,then,’that
whichisnot’hasseveralsenses,andmovementcanattachneitherto
thatwhichimpliesputtingtogetherorseparating,nortothatwhich
impliespotencyandisopposedtothatwhichisinthefullsense
(true,thenot-whiteornot-goodcanbemovedincidentally,forthe
not-whitemightbeaman;butthatwhichisnotaparticularthing
atallcaninnowisebemoved),thatwhichisnotcannotbemoved
(andifthisisso,generationcannotbemovement;forthatwhichis
notisgenerated;forevenifweadmittothefullthatitsgeneration
isaccidental,yetitistruetosaythat’not-being’ispredicableof
thatwhichisgeneratedabsolutely)。Similarlyrestcannotbelong
tothatwhichisnot。Theseconsequences,then,turnouttobe
awkward,andalsothis,thateverythingthatismovedisinaplace,
butthatwhichisnotisnotinaplace;forthenitwouldbe
somewhere。Norisdestructionmovement;forthecontraryofmovement
isrest,butthecontraryofdestructionisgeneration。Sinceevery
movementisachange,andthekindsofchangearethethreenamed
above,andofthesethoseinthewayofgenerationanddestructionare
notmovements,andthesearethechangesfromathingtoits
contradictory,itfollowsthatonlythechangefrompositiveinto
positiveismovement。Andthepositivesareeithercontraryor
intermediate(forevenprivationmustberegardedascontrary),and
areexpressedbyanaffirmativeterm,e。g。’naked’or’toothless’or
Ifthecategoriesareclassifiedassubstance,quality,place,
actingorbeingactedon,relation,quantity,theremustbethree
kindsofmovement-ofquality,ofquantity,ofplace。Thereisno
movementinrespectofsubstance(becausethereisnothingcontraryto
substance),norofrelation(foritispossiblethatifoneoftwo
thingsinrelationchanges,therelativetermwhichwastrueofthe
otherthingceasestobetrue,thoughthisotherdoesnotchangeat
all,-sothattheirmovementisaccidental),norofagenta