I will explain precisely the difference between the third element of the desire to receive, present in animals, and the fourth element, present in humans. It is like the difference between one specific creature and all of the creatures as a whole. For the desire to receive present in animals lacks empathy, and it creates wants and needs only to the extent necessary for that particular creature. Humans are different in that they are capable of empathy. [A human] can feel when someone else lacks something, and he can become extremely jealous of that which another has. If a person has one hundred, he wants two hundred. His wants and needs grow to the point that he wants to grab the entire universe.