I often think about teleology, which is not exclusive to Aristotle, but is the idea of investigating something by looking at the aim, end, or purpose of the thing. We can evaluate things on this basis; for example, the teleology of going to the grocery store is to come home with groceries and cook food to stay alive and stay healthy. Alternatively, if you go out for drinks with friends, the teleology is to have a nice, socially lubricated time with people you enjoy being around.