Don't fear failure; fear the absence of trying.

我是一个喜欢卓越的人。

All men have the stars, but they are not the same things for different people. For some, who are travelers, the stars are guides. For others they are no more than little lights in the sky. For others, who are scholars, they are problems. For my businessman they were wealth.

数学的真正力量不在于它的复杂性，而在于它的简洁和优雅。