1. The question
What concept could be better known to everyone than that of goodness? Certainly people are adept at using it, together with related terms like “bad”, “right”, “should”, etc. If I say that you should lose weight, or that this is a good pencil, or that eating meat is wrong, everyone understands what I mean. All of those examples relate to different kinds of goodness/badness, but they’re all varieties of it.
So everyone can use terms related to various kinds of goodness. But hardly anyone can really explain what it means for something to be good. That is to say, what if the question we ask is not whether it’s right to eat meat, but what does it mean to say that it’s right? As we will see in the next section, this question is much more difficult than it looks.