there's nothing to be confused about knowing and saying who you really are to people if you can't comfortable say it that means you lack are not sure of what and who you truly are the first thing that is needed for anyone to be successful is self identification of your worth so that people can treat you the way you present your self to the world.
He may have no idea to explain it to everyone. Sure, we must be confident with ourselves, we must know who we are. However, not every single of individual have the same level of confidence. There are some people who become introvert and feel shy to others. But we must deal with the lack of self-confidence. It can be the obstacle of the success if we can't deal with the problem.
Knowing your value is key when it comes to dealing with others because the fact is how you carry your self is what people will use in relating with you as a person
Indeed. If we don't know our value, how we can maintain it? People also will never know our value if we never state it to others.