There is something about chemistry that awakens the inventive and exploratory spirit of men and women,something that keeps chemists in their laboratories night and day,watching the first signs of success begin to show in their test tubes and flasks.

• 化学就有这么一种启发人们的创造精神与探索精神东西，使得化学家们日日夜夜呆在实验室里，注视着试管和烧瓶里开始显示的成功的最初信号。