最好的性能改进是从非工作状态过渡到工作状态。

"The world is full of people who have never, since childhood, met an open doorway with an open heart."

We want to build technology that everybody loves using, and that affects everyone. We want to create beautiful, intuitive services and technologies that are so incredibly useful that people use them twice a day. Like they use a toothbrush. There aren’t that many things people use twice a day.

创新不仅仅是创造新事物，更是改进已有的事物。

Patience is key in observational astronomy—some discoveries take decades to confirm.