The mind of a bigot is like the pupil of the eye. The more light you shine on it, the more it will contract.
Mathematics, rightly viewed, posses not only truth, but supreme beauty – a beauty cold and austere, like that of sculpture.
Do not worry about your difficulties in Mathematics. I can assure you mine are still greater.
Among those whom I like or admire, I can find no common denominator, but among those whom I love, I can: all of them make me laugh.
One is tempted to define man as a rational animal who always loses his temper when he is called upon to act in accordance with the dictates of reason.
Hate no one; hate their vices, not themselves.
People find life entirely too time-consuming.
Too many people are thinking of security instead of opportunity. They seem more afraid of life than death.