The masses are in reality their own leaders, dialectically creating their own development process.

Marxism is a revolutionary worldview that must always struggle for new revelations.

Tomorrow the revolution will already 'raise itself with a rattle' and announce with fanfare, to your terror: I was, I am, I will be!

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

The more that social democracy develops, grows, and becomes stronger, the more the enlightened masses of workers will take their own destinies, the leadership of their movement, and the determination of its direction into their own hands.

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.

Being human means throwing your whole life on the scales of destiny when need be, all the while rejoicing in every sunny day and every beautiful cloud.