I'm grateful for every challenge because it made me stronger.

恐惧和兴趣能激励人。

Prices are important not because money is considered paramount but because prices are a fast and effective conveyor of information through a vast society in which fragmented knowledge must be coordinated.

Man is so much the voice of his interest that it is not enough to make him see the right， but you must make him feel it.

过去不是负担，而是我们构建未来的基础。

Memory is not a fixed entity but a reconstructive process influenced by context and experience.

伦理道德的基础是理解爱和争斗在个体和社会中的作用。