where does discipline come from

What is self-discipline? Self-discipline is the ability to follow personally imposed rules, with order and consistency, using only willpower. It is a virtue that is acquired with constancy. Self-discipline is also the ability to control yourself and to make yourself work hard or behave in a specific way without requiring anyone else to tell you what to do. It’s about self-control, resolve, self-regulation, determination, and drive. Being a disciplined person...