From Augustine of Hippoc. 422
1. Your life of eminent fortitude and fruitfulness towards the Lord our God has brought to us great joy. For you have made choice of instruction from your youth upwards, that you may still find wisdom even to grey hairs; Sirach 6:18 for wisdom is the grey hair unto men, and an unspotted life is old age; Wisdom 4:9 which may the Lord, who knows h...