Arrogance and Ego

I'm pretty sure that we might have come across these two words in the world around us whether literally or metaphorically in a general discussion.  But what comes out as a great source of confusion is that they are one and same thing or are they different entities altogether. In my view, both are way different from each other.Speaking in language of youth, both of them are not so compatible.

Where does this come from?Well, arrogance comes from a person's over - confidence and ego is the results of one's self esteem.People tend to fuse them together when it comes to pride.They take one's assertiveness as their selfishness.That is the part where they get confused and mix them together.
As mentioned earlier , arrogance comes from confidence.When someone is very sure that stuff works their way and whatever ideas other have about the same thing is not appropriate, it creates an disgusting view. It takes the form of over - confidence and as a result we never  give value to other opinions. 

As for ego, self esteem is the source from where it grows. We begin to think that we are better off than others or we are superior and the world around us is inferior.Ego starts building up  in our mind and then comes a point when it takes an ugly form.
So, in the end, before I conclude, a simple yet interesting question arises, ''Should we have ego,arrogance or whatever you may call it?".I'll say have them all, but only in moderate quantities. Be sure of your abilities, but don't be overconfident. As for ego, know what your level is but don't create standards. That is the only to have them both and yet not harm your personality.