Learning is acquired by reading books, but the much more necessary learning, the knowledge of the world, is only to be acquired by reading men, and studying all the various facets of them.

God grant that not only the love of liberty but a thorough knowledge of the rights of man may pervade all the nations of the earth, so that a philosopher may set his foot anywhere on its surface and say: This is my country!

One thing only I know, and that is that I know nothing.

Knowledge without education is but armed injustice.

If you have knowledge, let others light their candles with it.

The next best thing to knowing something is knowing where to find it.

Man is distinguished, not only by his reason; but also by this singular passion from other animals... which is a lust of the mind, that by a perseverance of delight in the continual and indefatigable generation of knowledge, exceeds the short vehemence of any carnal pleasure.

Knowledge about life is one thing; effective occupation of a place in life, with its dynamic currents passing through your being, is another.

Charles V. said that a man who knew four languages was worth four men; and Alexander the Great so valued learning, that he used to say he was more indebted to Aristotle for giving him knowledge that, than his father Philip for giving him life.

Knowledge is knowing that we cannot know.