Wisdom is a good purchase though we pay dear for it.为了求知识，代价虽高也值得。

 

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。

 

Wit once bought is worth twice taught.由经验而得的智慧，胜于学习而得的智慧;一次亲身的体会，胜过两次的教师教导。

 

when the fight begins within himself, a man"s worth something. ( r. browning)

当一个人内心开始斗争时,他就有了价值.(布郎宁)