"We are all the authors of our own lives, but we are also the characters in someone else's story."

The great ideological battles between liberalism and communism, or between democracy and authoritarianism, have ended in the victory of the former.

数学的研究就像空气或重力——它无处不在，即使你看不到它。

There is no such thing as failure. Failure is just life trying to move us in another direction.