"The proletariat, the lowest stratum of our present society, cannot stir, cannot raise itself up, without the whole superincumbent strata of official society being sprung into the air."

"Man makes his own history, but he does not make it out of whole cloth; he does not make it under self-selected circumstances, but under circumstances existing already, given and transmitted from the p…"

"To be radical is to grasp things by the root."

"May the devil take these peoples movements, especially when they are 'peaceful'."

"Greek philosophy seems to have met with something with which a good tragedy is not supposed to meet, namely, a dull ending."