There are two motives for reading a book: one, that you enjoy it; the other, that you can boast about it.
Art is science made clear.
If people never did silly things, nothing intelligent would ever get done.
Live to learn… forget… and learn again.
The greatest challenge to any thinker is stating the problem in a way that will allow a solution.
The one serious conviction that a man should have is that nothing is to be taken too seriously.
The most savage controversies are those about matters as to which there is no good evidence either way.
Everything is vague to a degree you do not realize till you have tried to make it precise.