Well kiddo, Arete is like being really good at something. You know how you sometimes practice and practice until you get really good at a game or a skill? That's like having Arete.
It's kind of like being a superhero with a special power, except the power is your ability to do something really well. It can be anything you want, like sports, art, math or music.
When you have Arete, you're the best at what you do. Everyone can see that you're amazing, and they admire you for it.
So, if you keep working hard and practicing, one day you might have Arete too!