" The more sure I am that I'm right, the more likely I will actually be mistaken. My need to be right makes it more likely that I will be wrong! Likewise, the more sure I am that I am mistreated, the more likely I am to miss ways that I am mistreating others myself. My need for justification obscures the truth. "

― The Arbinger Institute , The Anatomy of Peace: Resolving the Heart of Conflict