"Thoughts are the shadows of our feelings – always darker, emptier, and simpler."

"One repays a teacher badly if one always remains nothing but a pupil."

"The value of a man is not measured by how much he loves, but by how much he is loved."

"The surest means of corrupting a youth is to instruct him to hold in higher esteem those who think alike than those who think differently."

"To live alone one must be a beast or a god, says Aristotle. There is yet a third case: one must be both — a philosopher."