" Closing a door on an option is experienced as a loss, and people are willing to pay a price to avoid the emotion of loss,” Ariely says. Sometimes that makes sense, but too often we’re so eager to keep options open that we don’t see the long-term price that we’re paying—or that others are paying. When you won’t settle for less than a perfect mate, you end up with no one. When parents can never say no to projects at the office, their children suffer at home. "

― Roy F. Baumeister , Willpower: Rediscovering the Greatest Human Strength