Like beauty, opportunity cost lies in the eyes of the beholder. Explain?

just that everything that happens the way a person believes what one beauty lies in the eyes of the behold we all think different each one of us believe different what we see is how we see it each thinks and look differently what our eyes see is different we all see things differently example what joe sees could be beautiful what tim see mabe is ugly and wouldn't want nothing to do with what their looking at