Why is it better to try to become a better person instead of a good person?

Being a good person is never good enough - there is always places to improve. Plus, you could already be a good person, but if you were a better person than that good person, it would be ... Well, better. However, everyone must know their limits and not push themselves too hard.

Not everyone can just become a good peson, so they need to try to become a better person so that they can become a good person in the long run.