每一个挑战都是伪装的机遇——只要你有心发现。

当有人告诉你某件事是错的时候，他们通常都是对的。当有人告诉你如何解决这个错误的时候，他们通常都是错的。

The most important object of both the workmen and the management should be the training and development of each individual in the establishment, so that he can do (at his fastest pace and with the maximum of efficiency) the highest class of work for which his natural abilities fit him.

成功不是终点，失败也不是致命的：重要的是继续前进的勇气。

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