by Michael Lopresto
What, if anything, makes life worth living? What matters to us most as human beings, and hence enables us to live the good life? Could it be knowledge, or worthwhile achievement, or love? Philosophers have produced various answers to this question. Aristotle argued that the good life is one lived according to reason, where we as rational beings exercise our rationality and virtue. Accordingly, we'd be in a state of flourishing. (Philosophers would apparently be living the ultimate form of life, on this view.) Alternatively, philosophers have come up with two main competing theories to Aristotles's: hedonism and objective-list theory. These two views contrast with each other really well. Hedonism says all that matters for a life to go well only has to do with having good experiences, namely, pleasure and happiness. Objective-list theory, on the other hand, moves right away from hedonism's first-person perspective, and says that all that matters is what can be “seen from the outside”, and from here we try to construct an open-ended list of all the things that are objectively valuable that can be plausibly said to make a life go well. Presumably, we'd include things on this list like knowledge, achievement of worthwhile ends, wisdom, friendship, and so on.
How are we to decide between these three views? One way may be to subject each view to criticism, and see which one fares best. So the objective-list theorist may say to the hedonist that hedonism can't be true because someone could conceivably get happiness counting blades of grass or from watching Nicolas Cage films. The hedonist may in turn say to the Aristotelian or the objective-lister that exercising one's rationality, or pursuing worthwhile ends, actually makes one miserable, and this is by no means a good life. Constantly exercising one's rationality may lead one to be constantly vigilant about one's moral obligations to humanity, and to be constantly weighed down by the knowledge of having done morally wrong things in the past, like dismissing the desperate needs of a friend.