We call them brothers and sisters because they are the only family you get to choose.
我们称他们为兄弟姐妹，因为他们是唯一你可以选择的家人。
Judge oneself than to judge others more difficult. If you successfully trial right himself, then you are really a wise.
The mind once enlightened cannot again become dark.
"Randomized experiments are the gold standard for causal inference, but they are not always feasible."
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.
