The theory of Marx, Engels, Lenin and Stalin is universally applicable. We should regard it not as a dogma, but as a guide to action. Studying it is not merely a matter of learning terms and phrases but of learning Marxism-Leninism as the science of revolution. It is not just a matter of understanding the general laws derived by Marx, Engels, Lenin and Stalin from their extensive study of real life and revolutionary experience, but of studying their standpoint and method in examining and solving problems.

Swollen in head, weak in legs, sharp in tongue but empty in belly.

Letting a hundred flowers blossom and a hundred schools of thought contend is the policy for promoting the progress of the arts and the sciences and a flourishing culture in our land.

Communists should be the most farsighted, the most self-sacrificing, the most resolute, and the least prejudiced in sizing up situations, and should rely on the majority of the masses and win their support.

All genuine knowledge originates in direct experience.

Let the ancient serve the present, let the foreign serve the national; by developing that which has been accomplished one creates something that is new.

While swimming in the heavily polluted rivers of south China, despite the pleadings of his security guards and his physician, he would chide his companions if they began to panic in the water: Maybe you're afraid of sinking, Don't think about it. If you don't think about it, you won't sink. If you do, you will.