The Enchiridion

"The signs of one who is making progress are these: he censures no man, he praises no man, he blames no man, he accuses no man, he says nothing about himself as if he were somebody or knew something: when he is impeded at all or hindered, he blames himself: if a man praises him he ridicules the praiser to himself: if a man censures him, he makes no defense he employs a moderate movement towards every thing: whether he is considered foolish or ignorant, he cares not: and in a word he watches himself as if he were an enemy and lying in an ambush."