Communism is not love. Communism is a hammer which we use to crush the enemy.

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

Where do correct ideas come from? Do they drop from the skies? No. They come from social practice, and from it alone; they come from three kinds of social practice, the struggle for production, the class struggle and scientific experiment.

Communists should set an example in study; at all times they should be pupils of the masses as well as their teachers.

Now, there are two different attitudes towards learning from others. One is the dogmatic attitude of transplanting everything, whether or not it is suited to our conditions. This is no good. The other attitude is to use our heads and learn those things that suit our conditions, that is, to absorb whatever experience is useful to us. That is the attitude we should adopt.

In transforming backward agricultural China into an advanced industrialized country, we are confronted with arduous tasks and our experience is far from adequate. So we must be good at learning.

It is right to rebel against reactionaries.