【译文】学问来源于思考。
No man really knows about other human beings. The best he can do is to suppose that they are like himself.
"No hay nada más peligroso que un hombre que no tiene nada que perder."
在任何情况下都要寻找积极的一面。
The psychologist must avoid all forms of reductionism.
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。