The real difference between a man's scientific judgments about himself and the judgment of others about him is he has added sources of knowledge.

It has been a privilege to pursue knowledge for its own sake and to see how it might help mankind in more practical ways.

I was one of the first generations to watch television. TV exposes people to news, to information, to knowledge, to entertainment. How is it bad?

Exclusively oral cultures are unencumbered by dead knowledge, dead facts. Libraries, on the other hand, are full of them.

Fine art is knowledge made visible.