Date: 1665

"But as though grains of Sand and Ashes be a part, but of a despicable smallness, and very easie, and liable to be scatter'd, and blown away; yet the skilful Artificer, by a vehement Fire, brings Numbers of these to afford him that noble substance, Glass, by whose help we may both see our selves,...

— Boyle, Robert (1627-1691)

Date: 1692

"[T]he Explanation whereof is allowed by all men as satisfactory, 'tis this, in Tab. 41. Fig. 2. the Image a b of the Object A B is painted on the Retina inverted, and yet the Eye (or rather the Soul by means of the Eye) sees the Object erect and in its natural Posture."

— Molyneux, William (1656-1698)

Date: 1710, 1734

Bodies are "barely passive ideas in the mind", and the mind is "more distant and heterogenous from them, than light is from darkness"

— Berkeley, George (1685-1753)

Date: From Saturd. March 11. to Tuesd. March 14. 1710

"It was then very pleasant to look into the Hearts of the whole Company; for the Balls of Sight are so form'd, that one Man's Eyes are Spectacles to another to read his Heart with."

— Steele, Sir Richard (1672-1729)

Date: Friday, October 26, 1711

"A Man, they say, wears the Picture of his Mind in his Countenance; and one Man's Eyes are Spectacles to his who looks at him to read his Heart."

— Steele, Sir Richard (1672-1729)

Date: 1713, 1734

"I have been a long time distrusting my senses; methought I saw things by a dim light, and through false glasses."

— Berkeley, George (1685-1753)

Date: 1713, 1734

"I have been a long time distrusting my Senses; methought I saw things by a dim Light, and thro false Glasses. Now, the Glasses are removed, and a new Light breaks in upon my Understanding."

— Berkeley, George (1685-1753)

Date: 1720

"But Friendship is the Mirror of the Mind, which lays open to us all our Faults"

— Shadwell, Charles (d. 1726)

Date: 1722

"Such an Author consulted in a Morning, sets the Spirit for the Vicissitudes of the Day, better than the Glass does a Man's Person"

— Steele, Sir Richard (1672-1729)

Date: March 13, 1727

"Must these like empty shadows pass, / Or forms reflected from a glass? / Or mere chimeras in the mind, / That fly, and leave no marks behind?"

— Swift, Jonathan (1667-1745)