Marx

From each according to his abilities, to each according to his needs.

Philosophers have attempted to interpret the world, when what matters is to change it.

No, już, wynoście się stąd! Ostatnie słowa są dla głupców którzy nie powiedzieli wystarczająco wiele.

We have nothing to lose but our change

The only antidote to mental suffering is physical pain.

The road to hell is paved with good intentions.

Religion is the opium of the people.

All surplus value, whatever particular (profits, interest, rent) it may subsequently crystallize into, is in substance the materialization of unpaid labor.

Religion is the sigh of the opressed creature, the feeling of a heartless world, the soul of soulless circumstances.

The class struggle necessarily leads to the dictatorship of the proletariat.

Hegel remarks somewhere that all great historical facts and personages occur as it were twice. He forgets to add: the first time as tragedy, the second as farce.

Men make their own history, but they do not make it just as they please; they do not make it under circumstances chosen by themselves, but under circumstances directly found, given, and transmitted from the past.

Sell a man a fish and he'll eat for a day; teach and man how to fish and you ruin a wonderful business opportunity.