Different men have different opinions. (or Some like apples and some like onions. or Every man has his hobbyhorse.)
［注解］hobbyhorse竹马；业余爱好，癖好。指人各有所好。
［译］萝卜青菜，各有所爱。
Do not cut down the tree that gives you shade.
［译］不要忘恩负义。
Dog does not eat dog.
［注解］莎士比亚的戏剧《特洛伊罗斯与克瑞西达》第5幕第7场中有：One bear will not bite another, and wherefore should one bastard? 一头熊不会咬它的同类，那么私生子为什么要自相残杀呢？（朱生豪译）wherefore（古）（疑问副词）为什么。bastard私生子。喻同室不操戈。
［译］同类不相残。
Don't make friends who are comfortable to be with. Make friends who will force you to lever yourself up.
［译］别交那些在一起让你舒舒服服的朋友。交那些让你不得不长进的朋友。