My object in life is to dethrone God and destroy capitalism.

Both for the production on a mass scale of this communist consciousness, and for the success of the cause itself, the alteration of men on a mass scale is necessary, an alteration which can only take place in a practical movement, a revolution; this revolution is necessary, therefore, not only because the ruling class cannot be overthrown in any other way, but also because the class overthrowing it can only in a revolution succeed in ridding itself of all the muck of ages and become fitted to found society anew.

Philosophy is to science as masturbation is to sex.

History calls those men the greatest who have ennobled themselves by working for the common good; experience acclaims as happiest the man who has made the greatest number of people happy.

All forms of the state have democracy for their truth, and for that reason are false to the extent that they are not democracy

Without doubt, machinery has greatly increased the number of well-to-do idlers.

Men's ideas are the most direct emanations of their material state.