We cannot suppose therefore that God has made an order of beings, with such mental qualities and powers, for the sole purpose of being used as beasts, or instruments of labour.
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.