Dogma demands authority, rather than intelligent thought, as the source of opinion; it requires persecution of heretics and hostility to unbelievers; it asks of its disciples that they should inhibit natural kindliness in favor of systematic hatred.

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

Beggars do not envy millionaires, though of course they will envy other beggars who are more successful.

The world in which we live can be understood as a result of muddle and accident; but if it is the outcome of deliberate purpose, the purpose must have been that of a fiend. For my part, I find accident a less painful and more plausible hypothesis.

A democrat need not believe that the majority will always reach a wise decision. He should however believe in the necessity of accepting the decision of the majority, be it wise or unwise, until such a time that the majority reaches another decision.

One of the most painful circumstances of recent advances in science is that each one makes us know less than we thought we did

Life and hope for the world are to be found only in the deeds of love.