say a literature survey class, or an English department reading list, but there is no such thing as one absolute canon of literature. Instead, there are many conflicting canons. He regards Bloom's "Western Canon" as a personal canon only. The process of defining the boundaries of the canon is endless. The philosopher John Searle has said, "In my experience there never was, in fact, a fixed 'canon'; there was rather a certain set of tentative judgments about what had importance and quality. Such judgments are always subject to revision, and in fact they were constantly being revised." One of the notable attempts at compiling an authoritative canon for literature in the English-speaking world was the Great Books of the Western World program. This program, developed in the middle third of the 20th century, grew out of the curriculum at the University of Chicago. University president Robert Maynard Hutchins and his collaborator Mortimer Adler developed a program that offered reading lists, books, and organizational strategies for reading clubs to the general public. An earlier attempt had been made in 1909 by Harvard University president Charles W. Eliot, with the Harvard Classics, a 51-volume anthology of classic works from world literature. Eliot's view was the same as that of Scottish philosopher and historian Thomas Carlyle: "The true University of these days is a Collection of Books". ("The Hero as Man of Letters", 1840) In the English-speaking world British renaissance poetry The canon of Renaissance English poetry of the 16th and early 17th century has always been in some form of flux and towards the end of the 20th century the established canon was criticised, especially by those who wished to expand it to include, for example, more women writers. However, the central figures of the British renaissance canon remain, Edmund Spenser, Sir Philip Sidney, Christopher Marlowe, William Shakespeare, Ben Jonson, and John Donne. Spenser, Donne, and Jonson were major influences on 17th-century poetry. However, poet John Dryden condemned aspects of the metaphysical poets in his criticism. In the 18th century Metaphysical poetry fell into further disrepute, while the interest in Elizabethan poetry was rekindled through the scholarship of Thomas Warton and others. However, the canon of Renaissance poetry was formed in the Victorian period with anthologies like Palgrave's Golden Treasury. In the twentieth century T. S. Eliot and Yvor Winters were two literary critics who were especially concerned with revising the canon