The spirit is never at rest, but always engaged in progressive motion, giving itself new form.

To him who looks at the world rationally the world looks rationally back.

Every idea, extended into infinity, becomes its own opposite.

To be aware of limitations is already to be beyond them.

History is not the soil of happiness. The periods of happiness are blank pages in it.

No man is a hero to his valet. This is not because the hero is no hero, but because the valet is a valet.

Poverty in itself does not make men into a rabble; a rabble is created only when there is joined to poverty a disposition of mind, an inner indignation against the rich, against society, against the government.