Whether man had mastership over all other creatures?

Objections

Objection 1 : It would seem that in the state of innocence man would not have had mastership over all other creatures. For an angel naturally has a greater power than man. But, as Augustine says (De Trin. iii, 8), "corporeal matter would not have obeyed even the holy angels." Much less therefore would it have obeyed man in the state of innocence.
Objection 2 : Further, the only powers of the soul existing in plants are nutritive, augmentative, and generative. Now these doe not naturally obey reason; as we can see in the case of any one man. Therefore, since it is by his reason that man is competent to have mastership, it seems that in the state of innocence man had no dominion over plants.
Objection 3 : Further, whosoever is master of a thing, can change it. But man could not have changed the course of the heavenly bodies; for this belongs to God alone, as Dionysius says (Ep. ad Polycarp. vii). Therefore man had no dominion over them.