无人机不是玩具，而是改变行业的工具。

The whole problem with the world is that fools and fanatics are always so certain of themselves， and wiser people so full of doubts.

幸福不是你为未来推迟的东西；它是你为现在设计的东西。

The journey of a thousand miles begins with one step.

Color is my day-long obsession, joy, and torment.

真正的黑帮像千层面一样安静行动。