The road to greatness requires temperance, and it all starts with self-discipline, which begins with taking care of your body. Those who have mastery over their souls are unafraid of change and scarcity, while those who practice self-discipline are not only physically fit but also happier and more balanced.
Discipline frees us from our chains and enables us to live a great life, while lack of self-control enslaves us. By choosing the hard path of discipline, we save ourselves and become of greater service to others.