锄一害而众苗成，刑一恶而万民悦。
出自汉·桓宽《盐铁论·后刑》。锄去田里有害的杂草，禾苗就可以健康地生长；惩罚为非作歹的恶人，百姓就会感到喜悦。
心理现象是为生活服务的工具。
You have brains in your head. You have feet in your shoes. You can steer yourself any direction you choose.
剑鞘保护剑的锋利，自己却满足於它自己的迟钝。
The fundamental job of a kid is to be selfish—to pursue their own needs and desires—and the fundamental job of a parent is to be selfless.
真相往往隐藏在显而易见之处。