Date: 1698

"From all which Considerations, (any One of which might suffice,) I may Safely and Evidently conclude, that, in point of Evidence of its Truth, and Stability of its Grounds, nothing can be any way comparable to the Light which strikes the Eye of our Understanding, by its steady Rays emitted from ...

— Sergeant, John (1622-1707)

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)