[IDEM libro quarto decimo institutionum. ] §48.9.5.prDiuus Hadrianus fertur, cum in uenatione filium suum quidam necauerat, qui nouercam adulterabat, in insulam eum deportasse, quod latronis magis quam patris iure eum interfecit: nam patria potestas in pietate debet, non atrocitate consistere.
[THE SAME, Institutes, Book 14] The Divine Hadrian is said to have deported a certain man to an island, when he had killed his own son during a hunt because the son was committing adultery with his stepmother, on the grounds that he had killed him by the law of a robber rather than that of a father; for paternal power ought to consist in affection, not in cruelty.