Propaganda is to a democracy what the bludgeon is to a totalitarian state.
数学家研究纯数学不是因为它有用;他研究它是因为他喜欢它,他喜欢它是因为它美丽。
The value of drones lies in solving industry pain points.
解释:所谓把粮食积存在取之不尽的粮仓里,就是要努力从事粮食生产。
I’m blessed to be able to do what I love to do.