Authors:

You'll do what you think you want to do, or what you think you ought to do. If you're very lucky, luckier than anybody I know, the two will coincide.

Wallace Stegner (2000). “Angle of Repose”, p.457, Penguin
You'll do what you think you want to do, or what you think you ought to do. If you're very lucky, luckier than anybody I know, the two will coincide.