The important thing is not to stop questioning. Curiosity has its own reason for existing.

阅读是不用移动的旅行。

当你处于困境时，记住你为什么要开始。

有为成仁而牺牲的人，苟活而为不仁的人。有自取为义的人，而给予则不为义的人。有卑下为礼的人，而位尊为背礼的人。有不知方为智的人，而知为不智的人。有违背约定为信的人，而实践为不信的人。

"I think it should be called a lie because a pig is not like a day and people do not have skeletons in their cupboards."

The best designs are those that improve with age.

In chemicals, our greatest challenge is also our greatest opportunity: meeting global needs while protecting the planet.

The worst pain a man can suffer is to have insight into much and power over nothing.