As featured in Maria Popova's Brain Pickings . . . America's Master Humorist on Masturbation One evening in Paris, 1879, Mark Twain rose to the podium and tackled the touchiest of subjects: masturbation. His remarks rubbed Victorian society the wrong way and were censored for over a century. Here, at long last, is Twain's hilarious lecture on "The Science of Onanism." This book includes 30 vintage illustrations and an introduction by Sam Torode, author of The Dirty Parts of the Bible.