The unexamined life is not worth living.
我希望自己永远是第一,但维持现在这样的高度确实是个蛮大的挑战。
No man, for any considerable period, can wear one face to himself and another to the multitude, without finally getting bewildered as to which may be the true.
无人机不是玩具,而是改变行业的工具。