Let the ruling classes tremble at a communist revolution. The proletarians have nothing to lose but their chains. They have a world to win. Workingmen of all countries, unite!
The writer must earn money in order to be able to live and to write, but he must by no means live and write for the purpose of making money
History does nothing; it does not possess immense riches, it does not fight battles. It is men, real, living, who do all this.
Capital is reckless of the health or length of life of the laborer, unless under compulsion from society.
The country that is more developed industrially only shows, to the less developed, the image of its own future.