"Social Democracy objectively represents the moderate wing of Fascism." - J. V. Stalin
"Women hold up half of the sky." - Mao Zedong (though a more or less common saying attributed to many)
“Civilize the mind but make savage the body” - Mao Zedong
"Socialism or barbarism." - K. Kautsky
"Poor countries aren’t underdeveloped, they are overexploited." - Prof. Dr. M. Parenti.
"Who has been saved by the United States?" - Fidel Castro
"We have no compassion and we ask no compassion from you. When our turn comes, we shall not make excuses for the terror." - Dr. K. Marx
But i also like more jokey ones ;
"The United States is also a one-party state but, with typical American extravagance, they have two of them." - Julius Nyerere
“Trotsky has sent in a silly letter. We shall neither print it nor reply to him.” - V. I. Lenin
"Stalin shouldn't have stopped at Berlin." - unknown
"If you don’t steal from your boss, you’re stealing from your family." - unknown
"It’s [date] and Stalin saved the world from fascism" - unknown
"The so-called crisis of homelessness has not abated, and it can’t. So, therefore, has my sense of rage not abated, and it can’t." - Don Mitchell, Mean Streets: Homelessness, public space, and the limits of capital. Definitely one of my favorite books I've read in the last couple years.
"When I give food to the poor, they call me a saint. When I ask why the poor have no food, they call me a Communist." - Dom Helder Camara. Pretty sure he wasn't actually a lefty but this is still good.
Hunger is hunger; but the hunger that is satisfied by cooked meat eaten with a knife and fork differs from hunger that devours raw meat with the help of hands, nails and teeth. - Karl Marx.