"The life of man is a perpetual flux of motion. All his thoughts, sentiments, and actions are in a continual succession, and never remain for any considerable time in the same state."

"I am apt to suspect the negroes and in general all other species of men (for there are four or five different kinds) to be naturally inferior to the whites."

"We make allowance for a certain degree of selfishness in men; because we know it to be inseparable from human nature, and inherent in our frame and constitution."

"There is no such thing as freedom of the will."

"A true sceptic will be diffident of his philosophical doubts, as well as of his philosophical conviction; and will never refuse any innocent satisfaction, which offers itself, upon account of either o…"