人人都是艺术家。

We don't own the land, we borrow it from our children.

蓄水池容纳：喷泉溢出。

"Randomized experiments are the gold standard for causal inference, but they are not always feasible."

心的记忆会消除坏的，放大好的。

做正确的事，而不是容易的事。