Man is what he believes.

... no one is bound to live as another pleases, but is the guardian of his own liberty.

"it's not my business," Scrooge returned. "It's enough for a man to understand his own business, and not to interfere with other people's. Mine occupies me constantly."

A man is likely to mind his own business when it is worth minding. When it is not, he takes his mind off his own meaningless affairs by minding other people’s business.

A man is likely to mind his own business when it is worth minding .when it is not ,he takes his mind off his own meaningless affairs by minding others people's business.
This expresses itself in gossip ,snooping and meddling ,and also in feverish interest in communal ,national and racial affairs .
In running away from ourselves we either fall on our neighbor's shoulder or fly at his throat.

Every man's happiness is his own responsibility.

One's own religion is after all a matter between oneself and one's Maker and no one else's.

Let every one mind his own business, and endeavor to be what he was made.

A man has a property in his opinions and the free communication of them.
He has a property of peculiar value in his religious opinions, and in the profession and practice dictated by them.
He has a property very dear to him in the safety and liberty of his person.
He has an equal property in the free use of his faculties and free choice of the objects on which to employ them.
In a word, as a man is said to have a right to his property, he may be equally said to have a property in his rights.

"Everyone needs to make his own choices. You need to mind your own business and not meddle in ours." So

Men's views of things are the result of their understanding alone. Their conduct is regulated by their understanding, their temper, and their passions.

Men are disturbed not by the things which happen, but by the opinion about the things.

Man is what be believes.” — Anton Chekhov

Every man has a right to do what he wills, provided he interferes not with a like right on the part of his neighbors.