Time spent in minding other people’s business is about the greatest waste of time there is.

The best kind of mind is that which minds its own business.

Some people go about doing good other people just go about.

Mind your own business or you will undermine your own business.

There are two reasons why some people don’t mind their own business. One is that they have no mind, and the other is that they have no business.

There are people in the world who sometimes waste their time trying to fix the thing which is not broken.