Stephen Sondheim said this quote

Must it all be either less or more,Either plain or grand?Is it always 'or'?Is it never 'and'?That's what woods are for:For those moments in the woods...Oh, if life were made of moments,Even now and then a bad one--!But if life were only moments,Then you'd never know you had one....to get what you wish, only just for a moment--These are dangerous woods!Let the moment go...Don't forget it for a moment, though.Just remembering you had an 'and,' when you're back to 'or,'Makes the 'or' mean more than is did before.Now I understand--And it's time to leave the woods.