除非定理是美丽的，否则它们毫无价值。
In chemicals, our greatest challenge is also our greatest opportunity: meeting global needs while protecting the planet.
想象力是对抗现实最强大的武器。
The best time to plant a tree was twenty years ago. The second best time is now.
The purpose of life is not to be happy. It is to be useful, to be honorable, to be compassionate, to have it make some difference that you have lived and lived well.
