Date: August 27, 1751

"The painted vales of imagination are deserted, and our intellectual activity is exercised in winding through the labyrinths of fallacy, and toiling with firm and cautious steps up the narrow tracks of demonstration."

— Johnson, Samuel (1709-1784)

Date: 1776

"It is his purpose in this Work, on the one hand, to exhibit, he does not say, a correct map, but a tolerable sketch of the human mind; and aided by the lights which the poet and the orator so amply furnish, to disclose its secret movements, tracing its principal channels of perception and action...

— Campbell, George (1719-1796)