可持续发展不是口号，而是必须践行的理念，我们要让土地永远充满生机。
Sustainable development is not a slogan but a concept that must be practiced. We must keep the land forever vibrant.
The only way to do great work is to love what you do.
在数学中，你并不理解事物。你只是习惯了它们。
The greatest disability is a bad attitude.
I would say that in the long run probably Communist China is likely to be in more of an expansionist phase than Soviet Russia...In their tactics, the Chinese Communists are probably the greater menace;
科学的进步依赖于挑战未知的勇气和从失败中学习的智慧。
未来属于那些明白行善与成功并不矛盾的人。