tome on reading, ABC of Reading, gave his opinion when he stated, "A classic is classic not because it conforms to certain structural rule, or fits certain definitions (of which its author had quite probably never heard). It is classic because of a certain eternal and irrepressible freshness." Michael Dirda, the 1993 Pulitzer Prize winning critic, concurred with Pound's view regarding the vitality of a classic when he wrote that "...one of the true elements of a classic" was that "they can be read again and again with ever-deepening pleasure." In the 1980s, Italo Calvino said in his essay "Why Read the Classics?" that "a classic is a book that has never finished saying what it has to say" and comes to the crux of personal choice in this matter when he says (italics in the original translation): " classic author is the one you cannot feel indifferent to, who helps you define yourself in relation to him, even in dispute with him." Consideration of what makes a literary work a classic is for Calvino ultimately a personal choice, and, constructing a universal definition of what constitutes a Classic Book seems to him to be an impossibility, since, as Calvino says "There is nothing for it but for all of us to invent our own ideal libraries of classics." While blogging on the website guardian.co.uk in 2009, Chris Cox echoes Twain's "classic" sentiments of 1900 and Bennett's witticism about classic books when he opined on the Guardian.Co "Books Blog" that there are actually two kinds of "classic novels": The first are those we know we should have read, but probably have not. These are generally the books that make us burn with shame when they come up in conversation... The second kind, meanwhile, are those books that we've read five times, can quote from on any occasion, and annoyingly push on to other people with the words: "You have to read this. It's a classic." University programs "Classic Books" reading lists now in use at some universities have been in modern vogue since at least the early part of the 20th century, with the additional impetus in 1909 of the Harvard Classics publishing imprimatur having individual works chosen by outgoing Harvard University president Charles W. Eliot. These "Reading Lists" have remained significant in the 21st century, with more of them being created during the past few decades (e.g. Jane Mallison's