认为有一个钟声会告诉投资者何时进入或退出市场的想法根本不可信。

很多智商高的人都是糟糕的投资者，因为他们的性格太糟糕了。

The purpose of psychotherapy is to set people free.

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.

Never stop learning because the world never stops changing.