Reason has always existed, but not always in a reasonable form.

Capital is dead labor, which, vampire-like, lives only by sucking living labor, and lives the more, the more labor it sucks.

The task is not just to understand the world but to change it.

It's possible that I shall make an ass of myself. But in that case one can always get out of it with a little dialectic. I have, of course, so worded my proposition as to be right either way.

By the aristocracy of finance must here be understood not merely the great loan promoters and speculators in public funds, in regard to whom it is immediately obvious that their interests coincide with the interests of the state power. All modern finance, the whole of the banking business, is interwoven in the closest fashion with public credit.

The existence of the state is inseparable from the existence of slavery.

The more the division of labor and the application of machinery extend, the more does competition extend among the workers, the more do their wages shrink together.