Don't be afraid to admit defeat. Learn from defeat. Do over again more thoroughly, more carefully, and more systematically what you have done badly.

Give me your four year olds, and in a generation I will build a socialist state.

If Socialism can only be realized when the intellectual development of all the people permits it, then we shall not see Socialism for at least five hundred years.

Democracy is indispensable to socialism.

If it were necessary to give the briefest possible definition of imperialism, we should have to say that imperialism is the monopoly stage of capitalism.

All contemporary religions and churches, all and every kind of religious organization, Marxism has always viewed as organs of bourgeois reaction, serving as a defense of exploitation and the doping of the working-classes.

It is impossible to predict the time and progress of revolution. It is governed by its own more or less mysterious laws.