2400 years ago Aristotle found out how to be happy. His Nicomachean Ethics is an operating manual for a good life: What is good? First of all, what makes a thing a good thing? A good thing fulfils its unique function. A good knife is a knife that is good at cutting. A good eye is an eye that is good at seeing. Now, what makes a good human? To know what a human should be good at, we need to look at what is unique about humans: We have a soul that thinks and feels. So for us to live a good li...
