中心地是总旅行距离最小的点。

I learned that the market is not a casino, but a place where you can make money if you are disciplined and patient.

每一个实验，无论成功与否，都会教会我们一些有价值的东西。

I always try to push the boundaries of what is possible in cinema.

知识会使人变得更加聪明，但不会使人更加幸福。