Capitalism, as a result of its own inner contradictions, moves toward a point when it will be unbalanced, when it will simply become impossible.

What do you want with these special Jewish pains? I feel as close to the wretched victims of the rubber plantations in Putamayo and the blacks of Africa with whose bodies the Europeans play ball… I have no special corner in my heart for the ghetto: I am at home in the entire world, where there are clouds and birds and human tears.

The clergy, no less than the capitalist class, lives on the backs of the people, profits from the degradation, the ignorance and the oppression of the people.

Freedom only for supporters of the government, only for the members of one party - however numerous they may be - is no freedom at all. Freedom is always and exclusively freedom for the one who thinks differently. Not because of any fanatical concept of 'justice' but because all that is instructive, wholesome and purifying in political freedom depends on this essential characteristic, and its effectiveness vanishes when 'freedom' becomes a special privilege.

Tomorrow the revolution will 'rise up again, clashing its weapons,' and to your horror it will proclaim with trumpets blazing: I was, I am, I shall be!

[Geology] opens up such wide intellectual vistas and supplies a more perfectly unified and more comprehensive conception of nature than any other science.

Marxism must abhor nothing so much as the possibility that it becomes congealed in its current form. It is at its best when butting heads in self-criticism, and in historical thunder and lightning, it retains its strength.