Prefer knowledge to wealth, for the one is transitory, the other perpetual.
No one can teach, if by teaching we mean the transmission of knowledge, in any mechanical fashion, from one person to another. The most that can be done is that one person who is more knowledgeable than another can, by asking a series of questions, stimulate the other to think, and so cause him to learn for himself.
True wisdom lies in one's confession about the limits of one's knowledge.
The only place where success comes before work is in the dictionary. There is only one good, knowledge, and one evil, ignorance.
Only the knowledge that comes from inside is the real Knowledge.
True knowledge exists in knowing that you know nothing. And in knowing that you know nothing, that makes you the smartest of all.
True knowledge exists in knowing that you know nothing.