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The ‘Perfect Friendship,’ According to Aristotle
Why do some friendships last and others fade?

When was the last time you hung out with your best friend from grade school? The one you told all your secrets to, had inside jokes with, even did a blood oath with? It’s probably been a while. Maybe a couple decades. Despite all the #rideordie hashtags and our massive collections of Facebook “friends,” most of the friendships that we form throughout our lives will dissolve. It’s inevitable, but why? To answer that question, I looked to a 2,000-year-old text.
The writings of Aristotle have shaped the course of history, influencing everything from political theory to economic systems to Western aesthetics. But the Greek philosopher also had profound thoughts on matters of everyday life, like our friendships. In Book VIII of the Nicomachean Ethics, Aristotle described “three kinds of friendship” that people form under different conditions, and why some bonds are stronger than others. Here, he laid out the first two: utility and pleasure.
“There are therefore three kinds of friendship, equal in number to the things that are lovable. Now those who love each other for their utility do not love each other for themselves but in virtue of some good which they get from each other. So too with those who love for the sake of pleasure; it is not for their character that men love ready-witted people, but because they find them pleasant.”
Friendships of utility and pleasure are similar — and they’re both fleeting. Aristotle observed that friendships of pleasure are most common among the young. Today, we can see that these friendships often form as a byproduct of shared phases — high school, college, or the first job search. As the next life chapter arrives, these friendships come to an end.
Friendships of utility often form between people who are more established, those who have learned that life consists of many tradeoffs, those who accept relationships that are more transactional in nature. A couple with small children might form a friendship with another young family in their neighborhood, and trade babysitting duties, for instance. Or a first-time founder might rely on a seasoned expert in his field. These relationships are also short-lived in nature because as soon as the…