Reflection on the past is the source of wisdom for the future.
You are the artist of your own life. Don't hand the paintbrush to anyone else.
对森林最大的威胁不是采伐，而是漠不关心。
You think it will never happen to you, that it cannot happen to you, that you are the only person in the world to whom none of these things will ever happen, and then, one by one, they all begin to happen to you, in the same way they happen to everyone else.
The arithmetic of L-functions is a window into the soul of number theory.