我们在对自然法则的认识上越深入，就越能在以前只看到复杂和不和谐的地方发现简单与和谐。

The most important tool in chemistry is not the flask or the spectrometer—it's the imagination.

What wisdom can you find that is greater than kindness？

对所有生物的爱是人类最高尚的品质。