Give and Take: The Diversity Within

Is it necessary to accept diversity within ourselves before we can expect the acceptance of diversity from others? Is this not the principle behind the give and take; the act of concession for the sake of profit? It is not far fetched to think that many people, vocal and nonvocal, believe that their perspective is the right perspective; but how many people ever consider the alternative that their perspective is wrong? Diversity of internal thought is not the holding of a plethora of ideas we "know" to be correct, but rather the acceptance of a multitude of assurances and doubts about what we think we know.