“Mind your own business,” Gov. Tim Walz (D-MN) said in the vice presidential debate. He likes this line and has made it his motto. Its slightly crasser version, “Mind your own damn business,” has been his best applause line on the campaign trail.

This is Walz’s “golden rule,” he has repeatedly told us. He is trying to replace the far older golden rule, “Do unto others as you would have them do unto you.” The reciprocity of that older version has got to go.