解决一个数学问题就是揭开宇宙拼图的一块。

If we had a keen vision and feeling of all ordinary human life, it would be like hearing the grass grow and the squirrel's heart beat, and we should die of that roar which lies on the other side of silence.

数学的目标是使简单的复杂化，使复杂的简单化。

The most necessary, the most important, the principal, the most essential thing for a musician is this: to know what he wants, what he can do, and what he ought to do.