 If all desire is understood in the same way, and all motivation takes the form of desire, then we can infer that psychological egoism in its strong form is true (and therefore its weaker versions are also true). Consider an action that seems, on the surface, to be altruistically motivated: I give you a gift simply because I think you will like it. Now, since I want to give you this gift, and all desire should be understood as a kind of hunger, I am hungering after your feeling pleased, as I hunger after a piece of food. But just as no one wants to ingest a piece of food for its own sake, I do not want you to feel pleased for your sake; rather, what I am seeking is the feeling of satisfaction I will get when you are pleased, and your being pleased is simply the means by which I achieve satisfaction. Accordingly, we don’t have to be keen observers of other people or look within ourselves to arrive at psychological egoism. We can recognize that this doctrine is correct simply by thinking about the nature of motivation and desire.