A teacher must believe in the educability of every child.
教师必须相信每个孩子的可教育性。
That's the only trouble with being a dog...they never tell you anything…
自由是一种必须每天重新征服的财富。
The only limits you have are the limits you believe.
【释义】:一个人如果没有他人的帮助,就难以取得成功;一匹马若缺乏其他马的竞争,就无法快速奔跑;堆积土石成台,没有更多的土便无法增高;池水若缺乏流动与激荡,就会停滞不前。