Aeneas Sylvius Piccolomini, Pope Pius II, in his tract The Education of Children (1451), prescribes the reading and study of classical authors, geometry, and arithmetic "for training the mind and assuring rapidity of conceptions." He included history and geography in his recommended curriculum, adding that "there is nothing in the world more beautiful than enlightened intelligence." The sixteenth century is filled with theories of education from men like Erasmus, Rabelais, and Montaigne. French schoolman Gabriel Compayre, in his History of Pedagogy (1885), holds all three in the highest regard: