Capital is reckless of the health or length of life of the laborer, unless under compulsion from society.

One of the most difficult tasks confronting philosophers is to descend from the world of thought to the actual world.

...the very cannibalism of the counterrevolution will convince the nations that there is only one way in which the murderous death agonies of the old society and the bloody birth throes of the new society can be shortened, simplified and concentrated, and that way is revolutionary terror.

...the realm of freedom does not commence until the point is passed where labor under the compulsion of necessity and of external utility is required.

The monopoly of capital becomes a fetter upon the mode of production, which has sprung up and flourished along with, and under it. Centralisation of the means of production and socialisation of labour at last reach a point where they become incompatible with there capitalist integument. This integument is burst asunder. The knell of capitalist private property sounds. The expropriators are expropriated.

With disdain I will throw my gauntlet full in the fact of the world and see the collapse of this pygmy giant. Then will I wander god-like and victorious through the ruins of the world. And giving my words an active force, I will feel equal to the Creator.

The theory of Communism may be summed up in one sentence: Abolish all private property.