1、It is good to learn at another man’s cost.
前车可鉴。
2、Wisdom is to the mind what health is to the body.
知识之于精神，一如健康之于肉体。
3、Experience is the best teacher.
经验是的教师。
4、Experience is the father of wisdom and memory the mother.
经验是知识之父，记忆是知识之母。
5、Dexterity comes by experience.
熟练来自经验。
