"Our great proletarian cultural revolution is acclaimed and warmly praised by all Marxists-Leninists and revolutionary people of the world and immensely fortifies their revolutionary fighting will and confidence in victory. The handful of imperialists, modern revisionists and reactionaries in various countries are hurling vicious abuse at us precisely because our great cultural revolution has dug out the roots of their subversive activities and their attempts at “peaceful evolution” in China and has thus hit them where it hurts most. Their abuse only proves that we have done the right thing and serves further to expose their reactionary features, their hostility towards the Chinese people and the cause of human progress."
January 1, 1970
https://en.wikiquote.org/wiki/Zhou_Enlai