• I.P. Bejczy (ed.), Virtue Ethics in the Middle Ages: Commentaries on Aristotle’s Nicomachean Ethics, 1200-1500 (Leiden: 2008).

• A.J. Celano, “The Understanding of the Concept of felicitas in the Pre-1250 Commentaries on the Ethica Nicomachea,” Medioevo 12 (1986), 29-53.

• A.J. Celano, “The Relation of Prudence and Synderesis to Happiness in Medieval Commentaries on Aristotle’s Ethics,” in J. Miller (ed.), The Reception of Aristotle’s Ethics (Cambridge: 2012), 125-54.

• B. Kent, Virtues of the Will: the Transformation of Ethics in the Late Thirteenth Century (Washington DC: 1995).

• D. Langston, “The Spark of Conscience: Bonaventure’s View of Conscience and Synderesis,” Franciscan Studies 53 (1993), 79-95.

• T.C. Potts, Conscience in Medieval Philosophy (Cambridge: 1980).