成功不在于金钱，而在于幸福和满足感。

The beauty of mathematics lies in its ability to describe the world in a precise and elegant way.

I try to write books that are both entertaining and thought-provoking.

Fear is the biggest disability of all. And will paralyze you more than being in a wheelchair.

To die for one's country is such a worthy fate that all compete for so beautiful a death.

The best leaders are those who can see the potential in people and help them realize it.

你知道的越多，你需要的就越少。