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

臣民的政治自由是每个人对自己安全感的平静心态。

The most widespread form of inequality in the world today is not that between rich and poor, but that between men and women.

我相信梦想的美丽和信仰的力量。

人的精神是世界上最宝贵的东西。