Behavior is not just a reaction, it's a communication.

Deep into that darkness peering, long I stood there wondering, fearing, doubting, dreaming dreams no mortal ever dared to dream before.

数学不仅仅是关于数字、方程、计算或算法：它是关于理解的。

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

预测未来的最好方法就是创造它。