When I am abroad, I always make it a rule never to criticize or attack the government of my own country。 I make up for lost time when I come home.
To write is to rewrite, and to rewrite is to understand.
我们如海鸥之与波涛相遇似地,遇见了,走近了。海鸥飞去,波涛滚滚地流开,我们也分别了。
Every problem in mathematics is an opportunity to learn something new.