Humility

We must not fear lest the knowledge of His gifts make us proud, so long as we are attentive to this truth, that whatsoever there is of good in us comes not from ourselves. Alas! Do mules cease to be disgusting beasts simply because they are laden with the precious and perfumed goods of the prince? St. Francis De Sales

So, an ass is an ass still, though it carry a thief's booty or a King's bounty.