Clever men are good, but they are not the best.
Great souls are always loyally submissive, reverent to what is over them: only small mean souls are otherwise.
Science must have originated in the feeling that something was wrong.
Conviction never so excellent, is worthless until it coverts itself into conduct.
It is a mathematical fact that the casting of this pebble from my hand alters the centre of gravity of the universe.
It is not honest inquiry that makes anarchy; but it is error, insincerity, half belief and untruth that make it.