A man who marries at my age isn’t taking a wife, he’s indenturing a nurse. - Robert A. Heinlein

Sense is never common.

Paymasters come in only two sizes: one sort shows you where the book says that you can’t have what you've got coming to you; the second sort digs through the book until he finds a paragraph that lets you have what you need even if you don’t rate it.

Heinlein's Rules for Writers

Rule One: You Must Write
Rule Two: Finish What Your Start
Rule Three: You Must Refrain From Rewriting, Except to Editorial Order
Rule Four: You Must Put Your Story on the Market
Rule Five: You Must Keep it on the Market until it has Sold