最近也是最远的是东西方向，最深也是最浅的是清澈的溪水。最高也是最明亮的是日月，最亲近也是最疏远的是夫妻关系。

The most dangerous strategy is to compete with rivals on their own terms.

乐观的基础是纯粹的恐惧。

To be a poet is to have a soul so quick to discern that no shade of quality escapes it.

数学中最激动人心的时刻是当你意识到两个看似不相关的领域有着深刻的联系时。