We know too much for one man to know too much.
Pragmatism is an intellectually safe but ultimately sterile philosophy.
When you see something that is technically sweet you go ahead and do it.
The physicists have known sin; and this is a knowledge which they cannot lose.
To try to be happy is to try to build a machine with no other specification than that it shall run noiselessly.
Optimists think that this is the best of all possible worlds; pessimists fear they are right.