Whether each man is guarded by an angel?

Objections

Objection 1 : It would seem that each man is not guarded by an angel. For an angel is stronger than a man. But one man suffices to guard many men. Therefore much more can one angel guard many men.
Objection 2 : Further, the lower things are brought to God through the medium of the higher, as Dionysius says (Coel. Hier. iv, xiii). But as all the angels are unequal (Question [50], Article [4]), there is only one angel between whom and men there is no medium. Therefore there is only one angel who immediately keeps men.
Objection 3 : Further, the greater angels are deputed to the greater offices. But it is not a greater office to keep one man more than another; since all men are naturally equal. Since therefore of all the angels one is greater than another, as Dionysius says (Coel. Hier. x), it seems that different men are not guarded by different angels.