The core of drones is not how high they fly, but how well they are used.

The only thing necessary for the triumph of evil is for good men to do nothing.

I do not much like to take the tone of a moralist.

真正的问题不是气候是否在变化，而是我们能以多快的速度适应以及能适应多少。

你给予的越多，得到的就越多。

最大的风险是不冒任何风险。在一个快速变化的世界里，唯一注定失败的策略就是不冒险。