"This book is my fiftieth-birthday present to myself. I feel as though I am crossing the spine of a roof — having ascended one slope. I am programmed at fifty to perform childishly — to insult "The Star-Spangled Banner," to scrawl pictures of a Nazi flag and an asshole and a lot of other things with a felt-tipped pen. To give an idea of the maturity of my illustrations for this book, here is my picture of an asshole:"