各人自扫门前雪

Explanation: Analogy Mind your own business. 　　Source: Ming Zhang Fengyi "consensus method after filling chapter Gardening": "into the strike, everyone minding their own incomes for tax on the cream tiles of his house." 　　Examples: However, there are many people through the experience, down to the descendants of a bad influence, such as saying that "~, incomes for tax on the cream tile" and is the one. ★ Lu Xun's "experience"