Concerning the Ten Commandments, which are the Heads of the Law (111-115)

Let them, then, not be ignorant that they are convicted before the two tribunals which are the only ones which exist in nature, of impiety as regards their duty towards God, as not worshipping those who have introduced beings who do not exist into existence, and who, in this respect, have imitated God; and as regards their duty towards men, of misanthropy and cruelty.

For to whom else will those men do good who neglect their nearest relations and and those who have bestowed the greatest gifts upon them, some of which are of so great a character that they do not

to whom I might say, with perfect propriety, that wild beasts even must be made tame towards men; and, indeed, I have frequently known instances of lions being domesticated, and bears and leopards, and made gentle, not only to those who feed them, by reason of their gratitude for necessaries, but also to others, on account, in my opinion, of their resemblance to their feeders.

For it is always well that what is worse should follow what is better, from a hope of deriving improvement;

but in this case I shall be constrained to use an entirely opposite language. You who are men, are imitators of some wild beasts. Even the beasts have learnt and know how to requite with service those who have done them service. Dogs who keep the house will defend their masters, and encounter death for their sakes when any danger suddenly overtakes them. And they say that the dogs employed among flocks of sheep will fight on behalf of the flocks, and endure till they either obtain the victory or meet with death, for the sake of protecting the shepherds themselves from injury.

Is it not then the most shameful of all shameful things for a man, in respect of the requital of favours, to be left behind by a dog, for that being, which of all others is the most gentle, to be outrun by the most audacious of beasts? But if we will not be taught by the land animals, let us go across to the nature of the winged birds which traverse the air, and learn what we have need of from them.