自然喜爱简单与统一。
历史学家是回望过去的先知。
In every country, the most important thing is the education of the people.
The best books ask questions, not just give answers.
The true artist is not proud; he knows that art is greater than himself.
时间存在的意义就是任何事都不可能立刻实现。
尿素合成是一个幸运的发现,但它开辟了一个新的研究领域。