True progress comes when we challenge the status quo and refuse to settle for 'good enough.'
真正的进步来自于挑战现状，拒绝满足于“足够好”。
Life is not what one lived, but what one remembers and how one remembers it in order to recount it.
世界不必担心我们政府中的军事野心。
It really matters whether people are working on generating clean energy or improving transportation or making the Internet work better and all those things. And small groups of people can have a really huge impact.