I think the definition of a book is changing.

I define nothing. Not beauty, not patriotism. I take each thing as it is, without prior rules about what it should be.

The world has never had a good definition of the word liberty ... We all declare for liberty; but in using the same word we do not all mean the same thing.

I now understand that my welfare is only possible if I acknowledge my unity with all the people of the world without exception.

To understand the man you have to know what was happening in the world when he was twenty.

The ultimate search engine would basically understand everything in the world, and it would always give you the right thing. And we're a long, long ways from that.