Quote by Roy Baumeister

"The self is not a thing but a process. It is something you do, not something you have."

"One of the most universal cravings of our time is a quality of identity and allegiance."

"Willpower is like a muscle. The more you use it, the stronger it gets."

"Self-control is strength. Calmness is mastery. You have to get to a point where your mood doesn't affect your productivity."