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.
Mao ZedongStalin made mistakes. He made mistakes towards us, for example, in 1927. He made mistakes towards the Yugoslavs too. One cannot advance without mistakes... It is necessary to make mistakes. The party cannot be educated without learning from mistakes. This has great significance.
Mao ZedongWhile 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.
Mao ZedongA man's head is not like a scallion, which will grow again if you cut it off; if you cut it off wrongly, then even if you want to correct your error, there is no way of doing it.
Mao Zedong