Date: 1765

"If all [the mind] had was the mere capacity to receive those items of knowledge--a passive power to do so, as indeterminate as the power of wax to receive shapes or of a blank page to receive words--it would not be the source of necessary truths"

— Leibniz, Gottfried Wilhelm (1646-1716)

Date: 1765

"I have also used the analogy of a veined block of marble, as opposed to an entirely homogenous block of marble, or to a blank tablet--what the philosophers call a tabula rasa"

— Leibniz, Gottfried Wilhelm (1646-1716)

Date: 1788

"But in general, I know of no method of getting money, not even that of robbing for it upon the highway, which has so direct a tendency to efface the moral sense, to rob the heart of every gentle and humane disposition, and to harden it, like steel, against all impressions of sensibility."

— Newton, John (1725-1807)