If you want to be successful, you have to be willing to make sacrifices.

I'm still standing better than I ever did. Looking like a true survivor, feeling like a little kid.

Leadership is about inspiring people to do things they never thought they could.

现代政治的巨大挑战是将身份认同的要求与自由民主的要求相调和。

I don't want to be the best in the world. I want to be the best for the world.

数学的美在于它既精确又富有创造性。