What can be shown, cannot be said.
能够显示的，就不能说。
广义相对论是所有现有物理理论中最美的。
No matter what happens in life, be good to people. Being good to people is a wonderful legacy to leave behind.
I’ve never been a natural, all I do is try, try, try.
Agriculture is the foundation of civilization, and we must invest in its future.
Failure is an option here. If things are not failing, you are not innovating enough.