To read too many books is harmful.

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.

You can't solve a problem? Well, get down and investigate the present facts and [the problem's] past history! When you have investigated the problem thoroughly, you will know how to solve it.

Let a hundred flowers bloom, let a hundred schools of thought contend.

Every comrade must be brought to understand that the supreme test of the words and deeds of a Communist is whether they conform with the highest interests and enjoy the support of the overwhelming majority of the people.

The people, and the people alone, are the motive force in the making of world history.

In China the struggle to consolidate the socialist system, the struggle to decide whether socialism or capitalism will prevail, will still take a long historical period. However, we should all realize that the new system of socialism will unquestionably be consolidated. We can assuredly build a socialist state with modern industry, modern agriculture, and modern science and culture.