your hand out the window was to get it wet. In the same way, though it is true that I may get personal satisfaction out of helping others, that satisfaction can merely be a by-product of my intended action to help others. Finally, psychological egoism is not saying that I normally act out of self interest, it says it is impossible for me to act otherwise. However, no evidence is offered to support this claim. No matter how much a person claims his or her action was altruistic, the psychological egoist