"The teacher who is indeed wise does not bid you to enter the house of his wisdom but rather leads you to the threshold of your mind."
"The greatest way to live with honor in this world is to be what we pretend to be."
"True knowledge exists in knowing that you know nothing. "
"A system of morality which is based on relative emotional values is a mere illusion, a thoroughly vulgar conception which has nothing sound in it and nothing true."
"Cleverness is not wisdom. "
"One loyal friend is worth ten thousand relatives."