Each individual is a cosmos of organs, each organ is a cosmos of cells, each cell is a cosmos of infinitely small ones; and in this complex world, the well-being of the whole depends entirely on the sum of well-being enjoyed by each of the least microscopic particles of organized matter. A whole revolution is thus produced in the philosophy of life.

The moral sense is a natural faculty in us like the sense of smell or of touch.

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.

I understand regicide as a means of obtaining vengeance for the ruin of our lives, but regicide as a means of obtaining political freedom I could never understand.

All this we see, and, therefore, instead of inanely repeating the old formula, "Respect the law," we say, "Despise law and all its Attributes!" In place of the cowardly phrase, "Obey the law," our cry, is "Revolt against all laws!"

War is the usual condition of Europe. A thirty years' supply of causes of war is always on hand.

The two great movements of our century -- towards Liberty of the individual and social co-operation of the whole community -- are summed up in Anarchist-Communism.