人没有礼义就不能生存，事情没有礼义就不能办成，国家没有礼义就不得安宁。

如果你从未尝试过，你怎么知道是否有机会？

The deepest problems of modern life derive from the claim of the individual to preserve the autonomy and individuality of his existence in the face of overwhelming social forces, of historical heritage, of external culture, and of the technique of life.

不确定性原理并非我们知识的局限，而是量子世界的基本属性。