Whether human souls were created together at the beginning of the world?

Objections

Objection 1 : It would seem that human souls were created together at the beginning of the world. For it is written (Gn. 2:2): "God rested Him from all His work which He had done." This would not be true if He created new souls every day. Therefore all souls were created at the same time.
Objection 2 : Further, spiritual substances before all others belong to the perfection of the universe. If therefore souls were created with the bodies, every day innumerable spiritual substances would be added to the perfection of the universe: consequently at the beginning the universe would have been imperfect. This is contrary to Gn. 2:2, where it is said that "God ended" all "His work."
Objection 3 : Further, the end of a thing corresponds to its beginning. But the intellectual soul remains, when the body perishes. Therefore it began to exist before the body.