Law Five: There Is Only One Reason To Write. During a post-second-novel depression, I spent six months, more or less, in the bathtub, trying to give up being a writer. Finally I realized that while I disliked publishing, I still loved writing. But if you want to respect what you write (rather than write for cash), you need a day job. Luckily, decades previously I faced a choice: between Vietnam or Harvard Med. I became a psychiatrist because I might learn about character and story, and could leave mornings free to write. Not as good a day job as my first, working the graveyard shift as a toll collector on the Rip Van Winkle Bridge – you can learn pretty much everything from what goes on at night in cars – but still.