As individuals express their life, so they are. What they are, therefore, coincides with their production, both with what they produce and with how they produce. The nature of individuals thus depends on the material conditions determining their production.

Natural science will in time incorporate into itself the science of man, just as the science of man will incorporate into itself natural science: there will be one science.

In a word, the free trade system hastens the social revolution. It is in this revolutionary sense alone, gentlemen, that I vote in favor of free trade.

And as for the Jews, who since the emancipation of their sect have everywhere put themselves, at least in the person of their eminent representatives, at the head of the counter-revolution -- what awaits them?

In the bureaucracy, the identity of state interest and particular private aim is established in such a way that the state interest becomes a particular private aim over against other private aims.

If anything is certain, it is that I myself am not a Marxist.

...the Communists everywhere support every revolutionary movement against the existing social and political order of things... They openly declare that their ends can be attained only by the forcible overthrow of all existing social conditions.