——赠宋庆龄题词，1922年

Integrity is the foundation of an enterprise, losing it means losing everything.

我们在渔业中的每一个决定都必须考虑海洋生物的长期健康。

The fact is that every writer creates his own precursors. His work modifies our conception of the past, as it will modify the future.

宇宙不仅比我们想象的更奇怪，而且比我们能够想象的更奇怪。

数学中最深刻的问题往往源于最简单的问题。