Thomas Aquinas, Compendium of Theology

This wonderfully ordered state of man is called original justice. By it man himself was subject to God on high, and all lower creatures were subordinate to man, as is indicated in Genesis 1:26: "Let him have dominion over the fishes of the sea and the fowls of the air." And among the component parts of man, the lower were subservient to the higher without any conflict. This state was granted to man, not as to a private individual, but as to the first principle of human nature, so that through him it was to be handed down to his descendants together with human nature.

Moreover, since every one ought to have a habitation befitting his condition, man thus harmoniously constituted was placed in a most temperate and delightful region, so that all inconvenience, not only of internal annoyance, but also of external surroundings, might be far removed from him.