世界因你的榜样而改变，而非你的意见。

历史学家必须怀有一种信念：人类不会也不能灭亡。

The world may be mean, but people don’t have to be, not if they refuse.

You have to dream hard.

"To be a human being means to possess a sense of guilt."

Innovation is at the heart of what we do; without it, we wouldn't be where we are today.

对效率的追求常常会背道而驰。不要总想着寻找可以快速完成任务的方法，而应该以找到你不想停下来的任务为目标。