Another who contributed significantly to the spirituality of the order is Albertus Magnus, the only person of the period to be given the appellation "Great". His influence on the brotherhood permeated nearly every aspect of Dominican life. Albert was a scientist, philosopher, astrologer, theologian, spiritual writer, ecumenist, and diplomat. Under the auspices of Humbert of Romans, Albert molded the curriculum of studies for all Dominican students, introduced Aristotle to the classroom and probed the work of Neoplatonists, such as Plotinus. Indeed, it was the thirty years of work done by Thomas Aquinas and himself (1245–1274) that allowed for the inclusion of Aristotelian study in the curriculum of Dominican schools.