Gregory of Nazianzus
Even hoar hairs have something to learn; and old age, it would seem, cannot in all respects be trusted for wisdom. I at any rate, knowing better than anyone, as I did, the thoughts and the heresy of the Apollinarians, and seeing that their folly was intolerable; yet thinking that I could tame them by patience and soften them by degrees, I let my...
gregory nazianzus, Letter 125