1. Hilaritas in PL 198.317B, 496B. For Cassian's remedy fortitudo, see Coll. 5. 23.
2. Ed. Bieler, 120; ed. Wasserschleben, 484–485.
3. Ed. Landgraf A. , Ecrits théologiques de l'école d'Abélard. ‘Spicilegium Sacrum Lovaniense, études et documents’ 14 (Louvain 1934) 105: ‘accidia, que est interna tristitia’; cf. p. 218. The vice is called acedia also in the pseudo-Augustinian Tractatus de septem vitiis et septem donis Spiritus Sancti (PL 40.1089); William of Doncaster, Aphorismata philosophica (cf. Grabmann M. , in Liber floridus [St. Ottilien 1950] 314); Peter Comestor, Sermo 11 in Quadrag. (defined as ‘saeculi tristitia,’ PL 198.1754B).
4. See Wilmart A. , Auteurs spirituels et textes dévots du moyen âge latin (Paris 1932), chapter 6. For the two genera of the vice, cf. Cassian, Coll. 5.11.
5. Sermo in festo sancti Benedicti (ed. Talbot C. H. , Sermones inediti b. Aelredi abbatis rievallensis, ‘Series Scriptorum s. ordinis Cisterciensis, 1; Rome 1952, pp. 68–69). Other occurrences of acedia and tristitia within series of vices: Speculum charitatis 1.17 and 2.12 (PL 195.520C; 556D); Oratio pastoralis 8 (ed. Ch. Dumont, ‘Sources chrétiennes’ 76; Paris 1961, p. 200).