"A passion is an original existence, or, if you will, modification of existence, and contains not any representative quality, which renders it a copy of any other existence or modification."

"I may venture to affirm, that there is nothing in itself more surprising than the easiness with which the many are governed by the few; and the implicit submission, with which men resign their own sen…"

"All systems of morality, which have hitherto been advanced, are founded on the principle that morality is something real and intrinsic."

"For my part, when I enter most intimately into what I call myself, I always stumble on some particular perception or other, of heat or cold, light or shade, love or hatred, pain or pleasure. I never c…"

"Some exalt our species to the skies, and represent man as a kind of human demigod, who derives his origin from heaven, and retains evident marks of his lineage and descent. Others insist upon the blin…"