"The enemy will not perish of himself. Neither will the Chinese reactionaries nor the aggressive forces of U.S. imperialism in China step down from the stage of history of their own accord."

"There is no construction without destruction. Destruction means criticism, means revolution. Destruction precedes construction."

"Unless we get rid of the rotten stuff, we cannot absorb fresh things."

"Reading is learning, but applying what one has learned is even more important."

"The socialist system will eventually replace the capitalist system; this is an objective law independent of man's will."