Leon Trotsky — "The revolution is not a game, but a serious task."

"The working class cannot simply lay hold of the ready-made state machinery, and wield it for its own purposes."

"The depth and strength of a human character are defined by its moral reserves. People reveal themselves completely only when they are thrown out of the customary conditions of their life."

"The permanent revolution, in the Marxian sense, means that the revolution does not stop at the democratic stage but goes over to the socialist stage."

"The main task of a revolutionary party is to prepare the working class for the conquest of power."

"The development of a revolution is determined by the fundamental class interests."