[147] And, moreover, man dwells among all the things that have been just enumerated, as most appropriate places having the closest connection with himself, changing his abode, and going at different times to different places. So that one may say with the most perfect propriety that man is every kind of animal, terrestrial, aquatic, flying, and celestial. For inasmuch as he dwells and walks upon the earth he is a terrestrial animal; but inasmuch as he often dives and swims, and sails, he is an aquatic creature. And merchants and captains of ships and purple dyers, and all those who let down their nets for oysters an fish, are a very clear proof of what is here said. Again, inasmuch as his body is raised at times above the earth and uses high paths, he may with justice be pronounced a creature who traverses the air; and, moreover, he is a celestial animal, by reason of that most important of the senses, sight; being by it brought near the sun and moon, and each of the stars, whether planets or fixed stars.