生活中最重要的事情不是胜利，而是奋斗。

过去并不属于我们，而我们属于过去。

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.

The causal framework is the foundation of scientific reasoning.

你怀疑别人，别人也就会怀疑你，你提防别人，别人也就是提防你，

"I’m the one who decides my value."

I have held many things in my hands, and I have lost them all; but whatever I have placed in God's hands, that I still possess.