Epictetus
Enchiridion 48
This is the position and character of a layman: He never looks for either help or harm from himself, but only from externals. This is the position and character of the philosopher: He looks for all his help or harm from himself.
Signs of one who is making progress are: He censures no one, praises no one, blames no one, finds fault with no one, says nothing about himself as though he were somebody or knew something. When he is hampered or prevented, he blames himself. And if anyone compliments him, he smiles to himself at the person complimenting; while if anyone censures him, he makes no defence. He goes about like an invalid, being careful not to disturb, before it has grown firm, any part which is getting well. He has put away from himself his every desire, and has transferred his aversion to those things only, of what is under our control, which are contrary to nature. He exercises no pronounced choice in regard to anything. If he gives the appearance of being foolish or ignorant he does not care. In a word, he keeps guard against himself as though he were his own enemy lying in wait.
Epictetus, Enchiridion 48, translated by W. A. Oldfather
The condition and characteristic of an uninstructed person is this: he never expects from himself profit (advantage) nor harm, but from externals. The condition and characteristic of a philosopher is this: he expects all advantage and all harm from himself. The signs (marks) 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 defence: he goes about like weak persons, being careful not to move any of the things which are placed, before they are firmly fixed: he removes all desire from himself, and he transfers aversion (ἔκκλισιν) to those things only of the things within our power which are contrary to nature: 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 ambush.
Epictetus, Enchiridion 48, translated by George Long
The ignorant man's position and character is this: he never looks to himself for benefit or harm, but to the world outside him. The philosopher's position and character is that he always looks to himself for benefit and harm.
The signs of one who is making progress are: he blames none, praises none, complains of none, accuses none, never speaks of himself as if he were somebody, or as if he knew anything. And if any one compliments him he laughs in himself at his compliment; and if one blames him, he makes no defence. He goes about like a conva- lescent, careful not to disturb his constitution on its road to recovery, until it has got firm hold. He has got rid of the will to get, and his will to avoid is directed no longer to what is beyond our power but only to what is in our power and contrary to nature. In all things he exercises his will without strain. If men regard him as foolish or ignorant he pays no heed. In one word, he keeps watch and guard on himself as his own enemy, lying in wait for him.
Epictetus, Enchiridion 48, translated by P. E. Matheson