Parenting is all about discipline. It’s about being strict and firm and unrelenting. Not with your kids, to be clear. That’s being a disciplinarian. When I say parenting is all about discipline, I’m talking about the only form that matters: self-discipline. There is a story about one of those legendary Beat parties in the early 1960s. Allen Ginsberg was hosting. Jack Kerouac was there holding court. There were drugs and ideas and romance. There was effortless cool and artistic genius on...