Date: 1690, 1694, 1695, 1700, 1706

"GOD I own cannot be denied to enlighten the Understanding by a Ray darted into the Mind immediately from the Fountain of Light"

— Locke, John (1632-1704)

Date: 1691

"As the Eyes are the Windows to let in the Species of all exterior Objects into the dark Cels of the Brain, for the information of the Soul; so are they flaming Torches to reveal to those abroad how the Soul within is moved or affected."

— Ray [formerly Wray], John (1627–1705)

Date: April 26, 1695; 1708

"Meditating by one's self is like digging in the Mine; it often, perhaps, brings up maiden Earth, which never came near the Light before; but whether it contain any Metal in it, is never so well tried as in Conversation with a knowing judicious Friend, who carries about him the true Touch-stone, ...

— Locke, John (1632-1704)

Date: 1759

"The violent emotions which at that time agitate us, discolour our views of things, even when we are endeavouring to place ourselves in the situation of another, and to regard the objects that interest us, in the light which they will naturally appear to him. The fury of our own passions constant...

— Smith, Adam (1723-1790)

Date: 1759

"His mighty mind travelled round the intellectual world; and, with a more than eagle's eye, saw, and has pointed out blank spaces, or dark spots in it, on which the human mind never shone."

— Young, Edward (bap. 1683, d. 1765)

Date: 1777

"The philosophical doctrine of the slow recession of bodies from the sun, is a lively image of the reluctance with which we first abandon the light of virtue."

— More, Hannah (1745-1833)

Date: October, 1784

"HUMAN thoughts are like the planetary system, where many are fixed, and many wander, and many continue for ever unintelligible; or rather like meteors, which generally lose their substance with their lustre."

— Anonymous