你的热情应该大于你的恐惧。

In my whole life, I have known no wise people who didn’t read all the time - none, zero.

The future of drones lies in intelligence, and the core of intelligence is algorithms and data.

Icame，Isaw，Iconquered.

圆的周长大于任何内接等边多边形的周长，小于任何外切多边形的周长。