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

唯一不变的是变化，持续的变化，不可避免的变化，这是当今社会的主导因素。

My goal is to create music that stands the test of time.

The market is always looking for the next big story.

真相往往是看不见的，因为它太明显了。

Literature is a weapon against forgetting.