And when your stomach is empty and your mind is full,it's always hard to sleep.

A city is not a collection of machines but a container of life.

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.

一个民族的活力随天气而变化。