"Autonomy of the will is the supreme principle of morality."

"All men are therefore equal, not in the sense that they are all alike, but in the sense that they all have the same rights and duties."

"To be truthful (honest) in all declarations is therefore a sacred unconditional command of reason, and not to be limited by any expediency."

"Experience without theory is blind, but theory without experience is mere intellectual play."

"The highest good in the world, the final end of all moral effort, is a world in which happiness is distributed in exact proportion to morality."