Date: 1710, 1734
"For example, the will is termed the motion of the soul: this infuses a belief, that the mind of man is as a ball in motion, impelled and determined by the objects of sense, as necessarily as that is by the stroke of a racket."
preview | full record— Berkeley, George (1685-1753)
Date: 1757
"Whatever turns the soul inward upon itself, tends to concenter forces, and to fit it for greater and stronger flights of science."
preview | full record— Burke, Edmund (1729-1797)