Universal peace will be realized, not because man will become better, but because a new order of things, a new science, new economic necessities, will impose peace.

Custom alone regulates morals.

You think you are dying for your country; you die for the industrialists.

The man of science multiples the points of contact between man and nature.

What frightens us most in a madman is his sane conversation.

What men call civilization is the condition of present customs; what they call barbarism, the condition of past ones.

Time deals gently only with those who take it gently.