赖其力者生，不赖其力者不生。
人依靠自己的力量人才能生存，不依靠自己的力量人就不能生存。
The customer may not always be right, but they are always the customer.
The teacher's task is not to implant facts but to place the subject to be learned in front of the learner and, through sympathy, emotion, imagination, and patience, to awaken in the learner the restless drive for answers and insights which enlarge the personal life.