An old dog cannot learn new tricks. 老狗学不出新把戏。

同类谚语

• Content is better than riches. 知足者常乐。
• Birds of a feather flock together. 物以类聚，人以群分。
• A good wife health is a man's best wealth. 妻贤身体好是男人最大的财富。
• Between friends all is common. 朋友之间不分彼此。
• All are brave when the enemy flies. 敌人逃窜时，人人都成了勇士。
• Genius is an infinite capacity for taking pains.天赋即吃苦耐劳的无比能力。
• Blood is thicker than water. 血浓于水。
• Doing is better than saying. 与其挂在嘴上，不如落实在行动上。
• Blood will have blood. 血债血偿。
• Books and friends should be few but good. 读书如交友，应求少而精。
• Care and diligence bring luck. 谨慎和勤奋才能抓住机遇。
• A bad beginning makes a bad ending. 不善始者不善终。