Self-Control is solely a matter of Thought-Control

A person with well-developed self-control does not indulge in hatred, envy, jealousy, fear, revenge or any similar destructive emotion. A person with well-developed self-control does not go into ecstasies or become ungovernable enthusiastic over anything or anybody.

Greed and selfishness and self approval beyond the point of accurate self-analysis and appreciation of one's actual merits indicate lack of self-control in one of its most dangerous forms. Self-confidence is one of the most important essentials of success but when this faculties developed beyond the point of reason it becomes very dangerous. Self-sacrifice is a commendable quality but when it is carried to extremes, it also becomes one of the dangerous forms of lack of self-control.

You owe it to yourself not to permit your emotions to place your happiness in the keeping of another person. Love is essential for happiness but the person who loves so deeply that his or her happiness is placed entirely in the hands of another resembles the little lamb who crept into the den of the nice gentle little wolf and begged to be permitted to lie down and go to sleep or the canary bird that persisted in playing with the cats whiskers.

-Excerpt from Law of Success Disc 3 (8) Napoleon Hill