The great cause of the prosperity of the country is liberty—liberty in the economic system.

无人机的未来是开放和共享的。

我们必须在能源需求和保护地球之间取得平衡。

没有事情的时候，需要照管这颗心，小心谨慎，好像有事一样；有了事情的时候，却要放下这颗心，泰然自得，好像没事一样。没有事情能像有事一样提防，才可以平息意想不到的变故；有了事情能像无事一样镇定，才能消除事件过程中的危机。

"Life, he realize, was much like a song. In the beginning there is mystery, in the end there is confirmation, but it's in the middle where all the emotion resides to make the whole thing worthwhile."