Father Roberto Busa, whose project to index the works of St. Thomas Aquinas marked the beginning of Digital Humanities. In 1946, an Italian Jesuit priest named Father Roberto Busa conceived of a project to index the works of St. Thomas Aquinas word by word. There were an estimated 10 million words, so the priest wondered if a computing machine might help. Three years later, he traveled to the U.S. to find an answer, eventually securing a meeting with IBM founder Thomas J. Watson. Beforehand, Busa learned Watson's engineers had already informed him the task would be impossible, so on his way into Watson's office, he grabbed a small poster from the wall that read, "The difficult we do right away; the impossible takes a little longer."