Whether we ought to love the angels out of charity?

Objections

Objection 1 : It would seem that we are not bound to love the angels out of charity. For, as Augustine says (De Doctr. Christ. i), charity is a twofold love: the love of God and of our neighbor. Now love of the angels is not contained in the love of God, since they are created substances; nor is it, seemingly, contained in the love of our neighbor, since they do not belong with us to a common species. Therefore we are not bound to love them out of charity.
Objection 2 : Further, dumb animals have more in common with us than the angels have, since they belong to the same proximate genus as we do. But we have not charity towards dumb animals, as stated above (Article [3]). Neither, therefore, have we towards the angels.
Objection 3 : Further, nothing is so proper to friends as companionship with one another (Ethic. viii, 5). But the angels are not our companions; we cannot even see them. Therefore we are unable to give them the friendship of charity.