Freedom of speech and the press must be complete. But then freedom of association must be complete too.

Lenin, the greatest man of action in our century and at the same time the most selfless.

It would be the greatest mistake, certainly, to think that concessions mean peace. Nothing of the kind. Concessions are nothing but a new form of war.

Don't be afraid to admit defeat. Learn from defeat. Do over again more thoroughly, more carefully, and more systematically what you have done badly.

He who does not work shall not eat

You have read and heard that communist theory-the science of communism created in the main by Marx, this doctrine of Marxism-has ceased to be the work of a single socialist of the nineteenth century, even though he was a genius, and that it has become the doctrine of millions and tens of millions of proletarians all over the world, who are applying it in their struggle against capitalism.

The natural scientist must be a modern materialist, a conscious adherent of the materialism represented by Marx, i.e., he must be a dialectical materialist.