未知不是要害怕的东西，而是要拥抱的东西。

The only purpose for which power can be rightfully exercised over any member of a civilized community， against his will， is to prevent harm to others.

任何优秀的飞行员，无论他有多么高的天赋和丰富的经验，都不会不使用检查表。

The most sophisticated circuit boards still require the simplest human values to function in society.

无人机的普及将带来效率的革命。

资本支出的纪律性将决定这个行业的赢家和输家。