 See Summa de anima, 256–262; Knuuttila 2004: 230–236; Knuuttila 2016. A more theological discussion of concupiscible and irascible emotions is found in William of Auvergne’s roughly contemporary De virtutibus, chs. 16–18. For a twelfth-century treatise on pride and humility, see Bernard of Clairvaux, On the Degrees of Humility and Pride (Opera III, 13–59). 