Date: 1700

"For (says he) Man can no more be a Light to his Mind than he is to his Body: And thence infers, that as the Eye has no Light in it self, so neither the Understanding."

— Leslie, Charles (1650-1722)

Date: 1700

" I will not take advantage of the Philosophy of this; for, I suppose his meaning to be, that it is Natural to the Understanding to Receive a Light that is infused into it, as for the Eye to see by an Extraneous light; that is, it is an Organ fitted to Receive Light, tho' it has none in it self; ...

— Leslie, Charles (1650-1722)

Date: 1714

"But when a monad has organs that are adjusted in such a way that, through them, there is contrast and distinction among the impressions they receive, and consequently contrast and distinction in the perceptions that represent them [in the monads] (as, for example, when the rays of light are conc...

— Leibniz, Gottfried Wilhelm (1646-1716)

Date: 1734

"And if it be said that the Understanding, which is but passive it self, like the bodily Eye, cannot be called the Leader of the rest of the Faculties; it must be granted, that (strictly speaking) it is rather the Light than the Guide: for if we consider it in the three Operations mention'd by th...

— Forbes of Pitsligo, Alexander Forbes, Lord (1678-1762)

Date: 1745

"That lies veiled from the eyes of our mind; and the great God hath not thought fit to throw so much light upon it, as to satisfy the anxious and inquisitive desires the soul hath to know it."

— Mason, John (1706-1763)