任何变化，即使是变得更好，总是伴随着缺点和不适。

我不会为做自己而道歉。

The past, like the future, is indefinite and exists only as a spectrum of possibilities.

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

永远不要低估“无用”的基础研究的重要性。

未来是让技术更加人性化。