Marxism is the science of the laws governing the development of nature and society, the science of the revolution of the oppressed and exploited masses, the science of the victory of socialism in all countries, the science of building communist society.

When one makes a Revolution, one cannot mark time; one must always go forward - or go back. He who now talks about the 'freedom of the press' goes backward, and halts our headlong course towards Socialism.

We admire the achievements of the Cuban revolution in the sphere of social welfare. We note the transformation from a country of imposed backwardness to universal literacy. We acknowledge your advances in the fields of health, education, and science.

We have long wanted to visit your country and express the many feelings that we have about the Cuban revolution, about the role of Cuba in Africa, southern Africa, and the world. The Cuban people hold a special place in the hearts of the people of Africa. The Cuban internationalists have made a contribution to African independence, freedom, and justice, unparalleled for its principled and selfless character.

It is impossible to predict the time and progress of revolution. It is governed by its own more or less mysterious laws.

If you want to know the taste of a pear, you must change the pear by eating it yourself. If you want to know the theory and methods of revolution, you must take part in revolution. All genuine knowledge originates in direct experience.