...capitalism does live by crises and booms, just as a human being lives by inhaling and exhaling.

Root out the counterrevolutionaries without mercy, lock up suspicious characters in concentration camps... Shirkers will be shot, regardless of past service.

Only the defeat of the proletariat in Germany in 1923 gave the decisive push to the creation of Stalin's theory of national socialism: the downward curve of the revolution gave rise to Stalinism, not to the theory of the permanent revolution, which was first formulated by me in 1905. This theory is not bound to a definite calendar of revolutionary events; it only reveals the world-wide interdependence of the revolutionary process.

Insurrection is an art, and like all arts has its own laws.

A program of "disarmament," while imperialist antagonisms survive, is the most pernicious of fictions. Even if it were realized by way of general agreement - an obviously fantastic assumption!- that would by no means prevent a new war. The imperialists do not make war because there are armaments; on the contrary, they forge arms when they need to fight.

No one revolution up to now has brought all that was expected of it by the masses. Hence the inevitability of a certain disillusionment, of a lowering of the activity of the vanguard, and consequently, of the growing importance of the rearguard. [Joseph] Stalin's faction has raised itself on the wave of reaction against the October revolution.

To renounce the conquest of power is voluntarily to leave the power with those who wield it, the exploiters. The essence of every revolution consisted and consists in putting a new class in power, thus enabling it to realize its own program in life. It is impossible to wage war and to reject victory.