数据驱动的研究可以挑战长期持有的经济假设。
To live outside the law, you must be honest.
A failure is not always a mistake, it may simply be the best one can do under the circumstances. The real mistake is to stop trying.
奖赏不正确,没有鼓励作用;施刑不正确,也起不到惩戒作用。