"The world is a book, and those who do not travel read only one page."

我不是悲观主义者。我是一个经历了很多的乐观主义者。

I have learned to seek my happiness by limiting my desires， rather than in attempting to satisfy them.

In the chemical industry, safety isn't a department - it's a culture.

当一个问题被清晰地陈述时，它就已经解决了一半。