OCTAVIUS
You may do your will,
But he's a tried and valiant soldier.
ANTONY
So is my horse, Octavius, and for that
I do appoint him store of provender.
It is a creature that I teach to fight,
To wind, to stop, to run directly on,
His corporal motion govern'd by my spirit (4.1.31-37)
Antony is shamelessly arrogant when speaking about Lepidus. He displays the same trait Caesar had: he thinks he's naturally above others, giving him freedom to do and say whatever he wants. Antony can't see his own prideful arrogance. Perhaps he doesn't see himself as arrogant, but just honest. Still, whatever bad you can say about Caesar, he's definitely <em>earned</em> some degree of cockiness. Antony, a little party-hearty fellow, arguably has a lot more to prove.