一个最重大的错误,是以动机而不是结果来判断政策的得失。
Mathematics is the art of turning complexity into clarity.
When it comes to creative endeavors, the concept of zero failures is worse than useless. It is counterproductive.
严厉的家庭没有凶悍的奴仆,而慈爱的母亲却会有败家的儿子。