Aristotle wrote that there is a kind of a friendship ladder, from lowest to highest. At the bottom—where emotional bonds are weakest and the benefits are lowest—are friendships based on utility: deal friends, to use Carlos’s coinage. You are friends in an instrumental way, one that helps each of you achieve something else you want, such as professional success. Higher up are friends based on pleasure. You are friends because of something you like and admire about the other person. They are entertaining, or funny, or beautiful, or smart, for example. In other words, you like an inherent
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