有时候最难的事情和最正确的事情是同一件事。
Sometimes the hardest thing and the right thing are the same.
The beauty of mathematics only shows itself to more patient followers.
The world needs energy, but it needs responsible energy more than ever.
表达人生聚散离合本是常态，不必在分别时过于伤感
The strength of a state is not just its ability to coerce, but its ability to provide services and maintain legitimacy in the eyes of its citizens.
天下的道理，归根结底只有一个。
做伟大工作的唯一方法就是热爱你所做的事情。