Science should serve humanity, not just curiosity.

The existence of law is one thing; its merit or demerit is another.

真相很少是纯粹的，也从不简单。

我认为不断学习和成长是很重要的。

We don't inherit the earth from our ancestors; we borrow it from our children—this is especially true in forestry.

一八一四年，俄、奥、普联军兵临巴黎城下，理工学校学生要求参战。后来，这句名言被刻在巴黎理工学校梯型大教室的天花板正中心，一直激励着该校师生奋发好学。

A great novel is one that changes the reader, that leaves him different after the last page.

有时最困难的部分不是放手，而是学会重新开始。