释义：善于游泳的人容易被淹死，善于骑马的人常常落马而摔伤，他们各因自己的爱好特长而招致灾祸。比喻有专门本领的人往往因自恃而招致灾祸。

The natural price of labor is that price which is necessary to enable the laborers, one with another, to subsist and to perpetuate their race, without either increase or diminution.

我们在内心做的事会改变外在的现实。