“Everyone has an ego.  Ego drives the most successful people in life—in the SEAL Teams, in the military, in the business world.  They want to win, to be the best.  That is good.  But when ego clouds our judgment and prevents us from seeing the world as it is, then ego becomes destructive.  When personal agendas become more important than the team and the overarching mission’s success, performance suffers and failure ensues.  Many of the disruptive issues that arise within any team can be attributed directly to a problem with ego.” ~ Jocko Willink, Extreme Ownership (Page 100)