You must have your heart on fire and your brain on ice.

Every cook has to learn how to govern the state.

Learning is never done without errors and defeat.

The reflection of nature in man's thought must be understood not lifelessly but in the eternal process of movement, the arising of contradictions and their solution.

In the end, one or the other will triumph - a funeral dirge will be sung over the Soviet republic or over world capitalism.

Freedom of speech and the press must be complete. But then freedom of association must be complete too.

No amount of political freedom will satisfy the hungry masses.