In the almost forty years since he first enunciated his thesis, Paul O. Kristeller's view that the Italian humanists were essentially rhetoricians has found wide acceptance. His analysis of the humanist movement, however, indicates that he includes among the humanists' interests the four other disciplines comprising, along with rhetoric, the studia humanitatis: grammar, poetry, history, and moral philosophy. His decision to characterize the humanists as rhetoricians rather than as grammarians, poets, historians, or moral philosophers derives from his interpretation of the professional role played by the humanists in their society. For Kristeller the humanists performed the same professional functions in their world as the medieval dictatores did in theirs. Both groups were primarily teachers of rhetoric and chancery officials, and both devoted a substantial portion of their creative efforts to composing in two literary genres, the epistle and the oration.