If you like doing something, do it regularly; if you don’t like doing something, make a habit of doing something different. The same goes for moral inclinations. When you get angry, you should know that you aren’t guilty of an isolated lapse, you’ve encouraged a trend and thrown fuel on the fire.
Provoked by the sight of a handsome man or a beautiful woman, you will discover within you the contrary power of self-restraint. Faced with pain, you will discover the power of endurance. If you are insulted, you will discover patience. In time, you will grow to be confident that there is not a single impression that you will not have the moral means to tolerate.
Pain too is just a scary mask: look under it and you will see. The body sometimes suffers, but relief is never far behind. And if that isn’t good enough for you, the door stands open; otherwise put up with it. The door needs to stay open whatever the circumstances, with the result that our problems disappear.
Consider that you also do many things wrong, and that you are a man like others; and even if you do abstain from certain faults, still you have the disposition to commit them, though either through cowardice, or concern about reputation, or some such mean motive, you abstain from such faults.