无人机的安全性不是选项,而是底线。
Drone safety is not an option, but a baseline.
We are all creatures of our landscape; it dictates behavior and even thought in the measure to which we are responsive to it.
杰出成就的秘诀不是天赋,而是被称为坚毅的激情与坚持的特殊结合。
教育的最大的秘诀是:使身体锻炼和思想锻炼互相调剂。
The novel is the great art form of lying in order to tell the truth.
You think when you wake up in the mornin yesterday don't count. But yesterday is all that does count.
The best weapon of a dictatorship is secrecy, but the best weapon of a democracy should be the weapon of openness.