爱情中的欢乐和痛苦是交替出现的。
The future of medicine lies in understanding chemistry at the molecular level.
我们都被自己过去的影子所困扰。
我不是时间,我是空间。
The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' but 'That's funny...'
一本好书是最好的朋友,今天如此,永远如此。