The truth is, the science of Nature has been already too long made only a work of the brain and the fancy: It is now high time that it should return to the plainness and soundness of observations on material and obvious things.

化学的基本问题是化学键的性质。

对人说话要留有余地，不要一吐为快，不能把心全部交给别人。

The quality of an organization's adaptability determines the quality of its survival.

Every sentence I utter must be understood not as an affirmation, but as a question.

虽然熟读了《诗经》三百篇，但让他去处理政事，却办不好；派他出使国外，却不能独立地根据具体情况应对自如；这样的人，读的即使再多，又有什么用处呢？

真正的文学是使我们更加人性的文学。