Explain Aristotle's Ethics To The Average Person

How would you explain Aristotle's main points in his Ethics to the average person: In Aristotles ethics he explains that we have to find out what makes something flourish or what makes something good at what it does. There are all sorts of examples that can be used but we will use a hammer as an example. What makes a hammer a good hammer, a hammer should not break when you use it to pound a nail into wood, it should not deform or bend when used, and if it is a good hammer you might get a life times use out of it. And Aristotle uses these kinds of examples to get people to understand what we are trying to figure out is what makes a good person. We know what makes a good hammer or other inanimate objects, but these are simply to easy to figure