Virtus is a word that comes from Latin and it means the quality of being brave, strong, and good. It is like having superpowers inside of you that help you do the right thing, even when it is hard.
Let's imagine you are playing a game with your friends and one of your friends starts cheating. Your virtus makes you feel like speaking up and telling them that it isn't fair to cheat. Having virtus means doing the right thing, even when nobody else is watching. It is like having a superhero inside of you that helps you make good choices and be a good person.
People who have virtus are often called virtuous, which means they are honest, brave, and kind. Remember, you don't need a cape or a fancy costume to be virtuous, you just need to listen to your inner superhero and do the right thing.