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: 1781

"But the difference is much greater between the ideas of sense, the materials upon which the mind first begins its work, and the truths produced by its operations, than between the rough marble, and the statue formed by the skill of PHIDIAS."

— Rotheram, John (1725–1789)

Date: 1781

"Let matter then be allowed to furnish the first materials; the enlightened mind, which by its operations upon these discovers truth, and pursues it through all its distant connections, must have powers as far superiour to that which gave the first impression, as PHIDIAS is superiour to the marble."

— Rotheram, John (1725–1789)