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# Title: An Essay Concerning Humane Understanding (shelfmarks Leibn. Marg. 38; ZEN Leibn. Marg. 38)
# Folio 96, page id 778263916:0112
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. Duration and Fxpansion considered roset her. B00
thetime when the thiris existed, is the sdea oF that Space oF Duration,
which passed betreen some bnoun and Aixed Period of Duration, and che
Beins oFthac chine. One Mers the distance of the Fixtremities of the
Bult, or fxistence ofthe same thins, as that it is a Foot Square, or lasted
ENO VCarS; the other Meus the distance ot it in Place, or Exictence
trom ocher tixed points of Duration or Space; as that it as in che mid
ile oF Lincolus-Inn- Fields, or the tirst deoree of Taurus, and in the rear
OFour Lorc, 1677. Or the f00O ycar oF the Fulian Period: AII Whick
distances, we measure by preconccired Ideas ot certair lensths OF SpacC
and Durarion, as Incties, Fcet, Miles, and Degrees, arid in the ottier Mi
nutes, dars andt YCarS, (06.
6. 9. There is one thins more, wherein Space and Duration tiave à
ereat Conformitr, and thac is, though they are justly reckoned amonest
our simple Ideas: Tet none ol the diltinet Ideas re have oF cither is with.
Outall manner oE Composition, it is the very Nature oF both of themto con-
sict OsPartS: But their Pares beins all oF che lame linc, and ithour the
mixture oFany other Idea, hinderthem not trom havins a Place aniongst
simple Ideas. Couldthe Mind, as in Number, come to (0 Imall a part oF
Fxtension or Duration, as excluded Dirilibiliey, that vould be, a5 it Were,
the indirisible Onito, or Pdea; By repetition of irhich, it vould makee its
more inlarsed Ideas oF Extension and Duration. Buc lince the Mind is
not able totrame an Ldea ot ans Space, without Parts; instead thereof it
malses ule ofthe common Meatures, Which by Familiar ulc, in cach C’oun
ery hare imprinted themselres on the Memorr (a5 Tnches, and Feet; Or
Cubito, andParalanes; and (o Scconds, Minutes, ITours, Days, and l’ears
in Duration:) ThoMind makes ulc, ICar, of sueh Ideas as thele, assim
pleones; and these are thecomponent Parts of larser Ideas, Wrhich the
Mind, uxon Occation, malies by the addition ot luch lnomn Lensens,
nrtrich it is aequainted wich: Om the other side, the ordinarr smallest
mealure re hrave of either, look d on as an Vnite in Number, when thé
Mind by dirition mould reduce them into lels Fractions. Thouch on
boch sides, boch in addition and division, cither oF SpacO or Duration,
Wrhen che sdea under Consuleration becomes very bis, or very small, the
Idea ol is precile Bults becomos very obscure and consused; and it is the
Number of itsrepealed additions, or dirisions, that aloneremains clear and
distinct, as rill easils appear to ans one, who will ler his Phovohts loole
in the vast Expansion of Space, or Divisibilies oEMTatter. Fvens Dart OF Du
ration is Duration t00; and evers pare ot exiention is tixtention, boph
Of therm capable os addition on divition in insinirum. But the lealt BOr-
tiorsos cithier ofthem, wrhereot we have clear and diltinet Ideas, mas,
Perliaps, bo turest tole considered by us, a5 the simple Ideas ot chachind,
out ottrhich oux complex modes of Space, Eixtention, and Durarion,
are macte ux, and into rhich ther can aeain be distinctly rosolved. Suct
a snollpare in Duration, maz De called a Moment, and is thotime ot one
idea in our Minds, in che train of their ordinars Succession there. The
others vantins a prover Name, Ihnon non whecher l may be allorredio
cau a sensible Roint, meanins therebis ihe least Partiele ot Matter
ox Space tre can discern, Wrhich is ordinarilz abour a. Sccond of a Cirele,
Whereosthe Fyois ehe Contre.
G. 20. Fixpantion, and Duration have chis Parther Agreement, that
thousha ther aue both conldered by us as havins Pares; sei their Parts
arc nos separable one trom anorher, no not oven in Phoughe: Phoughthe
Partsos Bodies, trom Wrhence e takre oux mealure ol theone; and the,
PArIS. OEMorion, or rathex che succettion ot Ideas in oux Minas, trom
WrhCMCO