W. ofN, Boak IV, chap. v; vol. Il, p
38. W, ofN^ Book I, chap. vu ; vol. 1, p. 6^. —The Daturol priée... is, asi
it vrere, the central price, to whieh the priées of ail commodities are cou-
tinually gravitating. — P. 62 : ... though the market price of every parti-
cular commodity is in this manner oontinually gravitating, if one may
say so, tuwards the natural price... — Hume avait employé la même
métaphore, dans son essai On the Balance of Trade : It is évident, that the
saine causes which would correct thèse exorbitant inerjualities, were they
to happen miraculousiy, must prcvent their happening in the common
course of nature, and must for ever, in ail neighbuu ring nations, préserve
money nearly proportionable to the art and industry of eaeh nation. AU
water, wherever it commuaicates, remains always at a level. Ask natura-
li:»ts the rcason ; they tell you tliat, wen; it to be raised in any one place,
the superior gravity of that part, not being balanced, must dcpress it, till
it meets a counterpoise ; and that the same cause, which redresses the
inequality v^rhen il happens must for cver prevent it, withoutsome violent
and external opération. — Et plus bas : W'e need not hâve recoui-se to a
physical attraction, in order to explain the necessity of this opération. There
is a moral attraction, arising from the interests and passions of men,
ifhieh is full as potent and infallible. — Le < naturel » se confond dés
lors avec le « nécessaire ». W. of N. Book IV, chap. vu ; vol. II, p. 208 :
natarally, or rather necessarily.