International politics is a ruthless and dangerous business, and it is foolish to expect states to behave according to moral principles.

Your self-worth is determined by you. You don't have to depend on someone telling you who you are.

我不是歌手，我是一个表演者。

The mind once enlightened cannot again become dark.

古代以天下为主体，君主为客体，君主一生所经营的，都是为了天下。