There’s also plenty of conjecture as to whether he practiced it.
Still, for some boozy writers and creative types, the advice is part of their technique.
Is it really a good idea?
Google the phrase, and the first link that pops up is a blog post from writer Jeff Goins. He’s decidedly against what the phrase represents—a certain level of forgiveness for addiction among artists. He writes:
You would never nod understandingly if a plumber came to your house, completely wasted, assuring you he’d return to clean up the mess when sober. That would be ridiculous.