[21] De Senectute, xi.
[22] Horace, Epist. i. 2, 62-3.
[23] Petrarch refers to a Calabrian monk who had begun giving him lessons in Greek, but left him on being appointed to a bishopric.
[24] Tusculan Orations, i. 21.
[25] Wisdom, viii. 21.
[26] Cor. xii. 9.
[27] Confessions, viii. 7.
[28] Æneid, ii. 361-9.
[29] Æneid, ii. 622.
[30] Horace, Odes, xi. 10, 6-8.