I approach every part I'm asked to do and decide to do from exactly the same angle: who is this person, what does he want, how does he attempt to get it, and what happens to him when he doesn't get it, or if he does?
Count all th' advantage prosperous Vice attains,
'Tis but what Virtue flies from and disdains:
And grant the bad what happiness they would,
One they must want--which is, to pass for good.