Clement of Alexandria

If it is lawful to live any sort of life one likes, obviously one may live in continence; or if any kind of life has no dangers for the elect, obviously one of virtue and self-control is far less dangerous. If the "lord of the sabbath" has been given the right to pass uncorrected if he lives an immoral life, a fortiori there will be no correction for him who behaves decently. "All things are lawful, but all things are not expedient," says the apostle. If all things are lawful, obviously this includes self-control. Therefore if one who uses his power to live a virtuous life receives praise, then much more worthy of reverence and honour is he who has given us this free and sovereign power and has allowed us to live as we choose, not allowing us to become enslaved and subjected to necessity by our acts of choice and rejection. But if both can have no anxiety, he who chooses incontinence and he who chooses abstinence, yet the honour is not equal. He who indulges his pleasures gratifies his body; but he who is controlled liberates from its passions his soul which is master of the body.