武装思想，坚不可摧

(1)Serve the People.
(2)In class society everyone lives as a member of a particular class, and every kind of thinking, without exception, is stamped with the brand of a class.
(3)The people, and the people alone, are the motive force in the making of world history.
(4)We must make a distinction between the enemy and ourselves, and we must not adopt an antagonisticstand towards comrades and treat them as we would the enemy.