"Let a man find himself, in distinction from others, on top of two wheels with a chain - at least in a poor country like Russia - and his vanity begins to swell out like his tires. In America it takes …"

"The revolution is impossible without a revolutionary theory."

"The revolution is not a dinner party, not an essay, not a painting, not a embroidery; it cannot be so refined, so leisurely and gentle, so 'benign', 'courteous', 'restrained' and 'magnanimous'."

"The working class is the only class that can save humanity from barbarism."

"The fate of the revolution depends on the outcome of the struggle for power."