永远不要停止问：“我们怎样才能做得更好？”

"We always overestimate the change that will occur in the next two years and underestimate the change that will occur in the next ten. Don't let yourself be lulled into inaction."

"Sometimes, you have to look back in order to understand the things that lie ahead."

历史不是发生了什么。历史只是历史学家告诉我们的东西。