I think it's really important to be able to laugh at yourself and not take yourself too seriously.

中国的崛起对自由民主秩序构成了重大挑战。

我不在乎排名，我在乎表现。

The truth is rarely pure and never simple.

"We are all completely different people at different points in our lives."

动力学的方程是完全的，我们无需超越它们。