The best time to plant a tree was 20 years ago. The second best time is now.
个人的总是政治的,政治的总是个人的。
The theory of automorphic forms is a central subject in modern number theory.
领导力就是做出今天艰难的决定,为后代谋福利。
世界充满了符号,但我们常常太盲目而看不到它们。