经济发展的关键不仅在于价格正确，更在于制度正确。

我们内心的黑暗使我们成为人类。承认它是迈向真正力量的第一步。

Of all the means which wisdom acquires to ensure happiness throughout the whole of life, by far the most important is friendship.

The greatest problem for mathematicians now is probably the Riemann Hypothesis.

【讲解】：发奋时候竟忘记吃饭，快乐时候就忘记了忧愁，把自己就要老了这件事也不放在心上，如此罢了。”