The knowledge of yourself will preserve you from vanity.

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

It is one of my sources of happiness never to desire a knowledge of other people's business.

The knowledge of anything, since all things have causes, is not acquired or complete unless it is known by its causes.

Having knowledge but lacking the power to express it clearly is no better than never having any ideas at all.

A man of knowledge lives by acting, not by thinking about acting.

We don't know all the answers. If we knew all the answers we'd be bored, wouldn't we? We keep looking, searching, trying to get more knowledge.

I'll come to you with gifts of knowledge, wisdom and truth.

To know what you know and what you do not know, that is true knowledge.

Knowledge is soon changed, then lost in the mist, an echo half-heard.