" The link between willpower and decision making works both ways: Decision making depletes your willpower, and once your willpower is depleted, you’re less able to make decisions. If your work requires you to make hard decisions all day long, at some point you’re going to be depleted and start looking for ways to conserve energy. You’ll look for excuses to avoid or postpone decisions. You’ll look for the easiest and safest option, which often is to stick with the status quo: Leave the prisoner in prison. "

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