“All good research-whether for science or for a book-is a form of obsession.”

“The good thing about science is that it's true whether or not you believe in it.”

“Some day, as soon as a book is printed it will be simultaneously put into digital form. That will be a wonderful research tool, but it will never substitute for holding the book. I feel certain that at least within my lifetime, everyone will still be going to the bookstore and buying printed books. Thank God I'll die before I have to worry about whether the printed book itself will disappear. That's something I don't want to live to see.”

“Play is the highest form of research.”

“Imagination is the highest form of research.”

“He said that whether a man's life was writ in a book someplace or whether it took its form day by day was one and the same for it had but one reality and that was the living of it.”