我不是为了纪录而比赛，我比赛是因为我热爱这项运动。

I always knew I was going to be rich. I don’t think I ever doubted it for a minute.

Dont keep making the same mistakes; try to make new mistakes.

理解历史的唯一方式就是活在其中。

The only person you should try to be better than is the person you were yesterday.

States are rational actors that seek to maximize their relative power in order to ensure their survival in a competitive international system.

历史学家是向后看的先知。

You have to find that balance between confidence and humility.