Always treat people as ends in themselves, never as means to an end.
Space and time are the framework within which the mind is constrained to construct its experience of reality.
The only thing that is good without qualification is a good will.
The hand is the visible part of the brain.
Religion is the recognition of all our duties as divine commands.
Two things strike me dumb: the infinite starry heavens, and the sense of right and wrong in man.