70 But if the wise men of old believed that a crop of armed men sprang up in the district of Thebes from the sowing of the hydra's teeth, whereas it is certainly established that seeds of one kind cannot be changed into another kind of plant, nor bring forth produce differing from its own seeds, so that men should spring from serpents and flesh from teeth; how much more, indeed, is it to be believed that whatever has been sown rises again in its own nature, and that crops do not differ from their seed, that soft things do not spring from hard, nor hard from soft, nor is poison changed into blood; but that flesh is restored from flesh, bone from bone, blood from blood, the humours of the body from humours. Can you then, you heathen, who are able to assert a change, deny a restoration of the nature? Can you refuse to believe the oracles of God, the Gospel, and the prophets, who believe empty fables?
Source: On the Death of Satyrus (New Advent)