The mutual-aid tendency in man has so remote an origin, and is so deeply interwoven with all the past evolution of the human race, that is has been maintained by mankind up to the present time, notwithstanding all vicissitudes of history.

No evolution is accomplished in nature without revolution. Periods of very slow changes are succeeded by periods of violent changes. Revolutions are as necessary for evolution as the slow changes which prepare them and succeed them.

You know how I always believe in the future. Without disorder, the revolution is impossible; knowing that, I did not lose hope, and I do not lose it now.

My brother could not write about trifles. Even in society he became animated only when some serious discussion was engaged in, and he complained of feeling 'a dull pain in the brain'--a physical pain, as he used to say--when he was with people who cared only for small talk.

A national movement, which does not include in its platform the demand for an economical change advantageous to the masses has no chance of success unless supported by foreign aid.

If you want to know the people of a nation, I am sure you can judge a great deal more about them from their cooking and eating traditions than you can from the words and actions of their public officials.

Poverty, the existence of the poor, was the first cause of riches.