In the national struggles of the proletarians of the different countries, they point out and bring to the front the common interest of the entire proletariat, independently of all nationality.
Karl MarxThe whole proletariat must be armed at once with muskets, rifles, cannon and ammunition, and the revival of the old-style citizens militia, directed against the workers, must be opposed.
Karl MarxThere is no greater stupidity than for people...to marry and so surrender themselves to the small miseries of domestic and private life.
Karl Marx