" If you want financial success, you need the self-control to waste little time on fun things that don’t contribute to your personal and professional development. If you want happy and healthy children, you need the self-control to spend a great deal of time with them (thus depriving yourself of time to do what you want to do for yourself). If you want to be physically fit, you need the self-control to eat less fattening, less delicious foods and to exercise regularly. "

― Dennis Prager , Happiness Is a Serious Problem: A Human Nature Repair Manual