The victory of socialism will not descend like fate from heaven.

History is the only true teacher, the revolution the best school for the proletariat.

[Geology] opens up such wide intellectual vistas and supplies a more perfectly unified and more comprehensive conception of nature than any other science.

Those who don't move don't notice their chains.

We will be victorious if we have not forgotten how to learn.

Marxism is a revolutionary worldview that must always struggle for new revelations.

Without general elections, without freedom of the press, freedom of speech, freedom of assembly, without the free battle of opinions, life in every public institution withers away, becomes a caricature of itself, and bureaucracy rises as the only deciding factor.