"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
Always thought this line from the manifesto was banger
This one in particular is good if the person you're speaking to is religious. I used a simplified version to explain my disgust for Saudi Arabia very quickly, and in particular what they have done in Mecca with all their grand luxury hotels around the Kabaah.