" Vallet wrote of something else. Stimulated in some mysterious way by what he was saying, I made that connection myself and, and as I identified the idea with the text I was underlining, I attributed it to Vallet. And for more than twenty years I had been grateful to the old abbot for something he had never given me. I had produced the magic key on my own. "

― Umberto Eco , How to Write a Thesis