Science may set limits to knowledge, but should not set limits to imagination.

The institution of representative government to us seems an essential part of democracy, but the ancients never thought of it. Its immense merit was that it enabled a large constituency to exert indirect power, and thus made possible the distribution of political responsibility throughout the great states of modern times.

Uncertainty in the pressure of vivid hopes and fears is painful, but must be endured if we wish to live without the support of comforting fairy tales.

Politics is largely governed by sententious platitudes which are devoid of truth

Mathematics is only the art of saying the same thing in different words.

Mathematics takes us into the region of absolute necessity, to which not only the actual word, but every possible word, must conform.

The secret of happiness is this: let your interests be as wide as possible, and let your reactions to the things and persons that interest you be as far as possible friendly rather than hostile.