3 You learned men, forsooth, dress up for our benefit some wonderful First Man, who came down from the race of light to war with the race of darkness, armed with his waters against the waters of the enemy, and with his fire against their fire, and with his winds against their winds. And why not with his smoke against their smoke, and with his darkness against their darkness? According to you, he was armed against smoke with air, and against darkness with light. So it appears that smoke and darkness are bad, since they could not belong to his goodness.
The other three, again— water, wind, and fire— are good. How, then, could these belong to the evil of the enemy? You reply that the water of the race of darkness was evil, while that which the First Man brought was good; and so, too, his good wind and fire fought against the evil wind and fire of the adversary. But why could he not bring good smoke against evil smoke? Your falsehoods seem to vanish in smoke. Well, your First Man warred against an opposite nature. And yet only one of the five things he brought was the opposite of what the hostile race had. The light was opposed to the darkness, but the four others are not opposed to one another. Air is not the opposite of smoke, and still less is water the opposite of water, or wind of wind, or fire of fire.
Source: Reply to Faustus the Manichaean (New Advent)