"Traders often revise their books; to see whether every thing be neat, and accurate, and in its proper place. Students, in like manner, should often revise their knowledge, or at least the more useful branches of it; renew those impressions on the Memory, which had begun to decay through length of time"
— Beattie, James (1735-1803)
(III, p. 44)
Beattie, James. Dissertations Moral and Critical (London: Printed for Strahan, Cadell, and Creech, 1783). Facsimile-Reprint: Friedrich Frommann Verlag, Stuttgart-Bad Cannstatt, 1970. <Link to Google Books>