Punishment may make us obey the orders we are given, but at best it will only teach an obedience to authority, not a self-control which enhances our self-respect.
Bio: Marcus Aurelius was Roman Emperor from 161 to 180. He ruled with Lucius Verus as co-emperor from 161 until Verus' death in 169. Marcus Aurelius was the last of the so-called Five Good Emperors.