I am a machine, condemned to devour them and then, throw them, in a changed form, on the dunghill of history.

Society is a sort of organism on the growth of which conscious efforts can exercise little effect.

Language is as old as consciousness, language is practical, real consciousness that exists for other men as well, and only therefore does it also exist for me; language, like consciousness, only arises from the need, the necessity, of intercourse with other men.

Experience praises the most happy the one who made the most people happy.

So far no chemist has ever discovered exchange-value either in a pearl or a diamond.

Be careful to trust a person who does not like wine.

Reason has always existed, but not always in a reasonable form.