Quote #3583
When one is trying to do something beyond his known powers it is useless...
Quote #8196
What is important is to keep learning, to enjoy challenge, and to tolerate ambiguity....
Quote #4194
Know the right moment.
Quote #2261
Sometimes a cigar is just a cigar.
Quote #16534
Science is a mechanism, a way of trying to improve your knowledge of nature....
Quote #28570
The reasonable man adapts himself to the world the unreasonable one persists in trying...
Quote #22771
Not to be absolutely certain is, I think, one of the essential things in...
Quote #21472
History never looks like history when you are living through it.
Quote #20699
It is in men as in soils where sometimes there is a vein of...
Quote #34807
A bore is a man who, when you ask him how he is, tells...