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.

It's not the tools you have faith in – tools are just tools – they work， or they don't work.It's people you have faith in or not.

事实是，大多数时候我都不知道自己在做什么，但我还是做了。

"The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion."