解释
习惯是人在日常生活中养成的行为模式，久而久之，这些行为会变得自然而然，并且难以改变。
Custom is a second nature. 习惯是后天养成的。
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。
- Genius is an infinite capacity for taking pains.天赋即吃苦耐劳的无比能力。
- All are brave when the enemy flies. 敌人逃窜时，人人都成了勇士。
- Doing is better than saying. 与其挂在嘴上，不如落实在行动上。
- Blood is thicker than water. 血浓于水。
- 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。