The desires， and other passions of man， in themselves， are in his own power； his real difficulties are， to know when they are to be controlled， and when not.

Our industry's license to operate is written in the ink of social consent.

化学的未来在于开发与自然合作而非对抗的可持续方法。

"Sometimes you have to lie. But to yourself you must always tell the truth."

数学不是关于数字、方程、计算或算法：它是关于理解的。