任何新生事物的成长都是要经过艰难曲折的。在社会主义事业中，要想不经过艰难曲折，不付出极大努力，总是一帆风顺，容易得到成功，这种想法，只是幻想。 - Mao Zedong

国家的统一，人民的团结，国内各民族的团结，这是我们的事业必定要胜利的基本保证。但是，这并不是说在我们的社会里已经没有任何的矛盾了。没有矛盾的想法是不符合客观实际的天真的想法。在我们的面前有两类社会矛盾，这就是敌我之间的矛盾和人民内部的矛盾。这是性质完全不同的两类矛盾。

Today, the danger of a world war and the threats to China come mainly from the warmongers in the United States. They have occupied our Taiwan and the Taiwan Straits and are contemplating an atomic war. We have two principles: first, we don’t want war; second, we will strike back resolutely if anyone invades us. This is what we teach the members of the Communist Party and the whole nation. The Chinese people are not to be cowed by U.S. atomic blackmail. Our country has a population of 600 million and an area of 9,600,000 square kilometres. The United States cannot annihilate the Chinese nation with its small stack of atom bombs. Even if the U.S. atom bombs were so powerful that, when dropped on China, they would make a hole right through the earth, or even blow it up, that would hardly mean anything to the universe as a whole, though it might be a major event for the solar system.

Do not stop half way and do not ever go backward. There is no way behind you.