It's been a good while since I read any of Smullyan's work, but I kinda want to say that the entirety of This Book Needs No Title, along with at least one of hi

It's been a good while since I read any of Smullyan's work, but I kinda want to say that the entirety of This Book Needs No Title, along with at least one of his other philosophy books (and maybe some parts of his logic puzzle books) does a pretty good job of expanding on that last line.