The most revolutionary thing one can do is always to proclaim loudly what is happening.

Freedom is always and exclusively freedom for the one who thinks differently.

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.

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

The working classes in every country only learn to fight in the course of their struggles.

Bourgeois society stands at the crossroads, either transition to socialism or regression into barbarism.

Those who do not move, do not notice their chains.