Albert Bigelow Paine,
The Boys' Life of Mark Twain — Chapter 50
(1916)
“ It was Mark Twain’s purpose, this time, to publish anonymously. Walking the floor one day at Viviani, and smoking vigorously, he said to Mrs. Clemens and Susy: "I shall never be accepted seriously over my own signature. People always want to laugh over what I write, and are disappointed if they don’t find a joke in it. This is to be a serious book. It means more to me than anything else I have ever undertaken. ”
