The story of chemistry is the story of humanity’s quest to understand the world.

宇宙中无物浪费，无物贫瘠，无物死亡；无混沌，无混乱，除非表象如此。

A long habit of not thinking a thing wrong, gives it a superficial appearance of being right.

I have now taken a serious task upon myself and I fear a greater one than is in the power of any man to perform.

自身无灾无病，感受不到快乐，等到生病卧床，才了解到无灾无病的快乐；家中平安无事，感受不到快乐，等到祸事临头，才体会到平安无事的快乐。