A man needs to be selfish with his time. It is a commodity he can never get back..Choose what you focus on wisely.
A man needs to spend money wisely. Be selfish with how you expend your resources. The plan is to make money go to work for you, not the other way around.
Lastly a man needs to protect his mind from ignorance and negativity. Our mind enables us to be disciplined in every other good habit.