过去从未死去。它甚至不是过去。

宇宙并不比我们想象的更奇怪，而是比我们能够想象的更奇怪。

In the midst of difficult times， it is our response that defines us， not the circumstances.

我喜欢争论，我喜欢辩论。我不期望任何人只是坐在那里同意我，那不是他们的工作。

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

我不相信后悔，我相信从中吸取教训。

I am following nature without being able to grasp her.