Humility is the mother of all virtues. Humility says we are not in control, principles are in control, therefore we submit ourselves to principles. Pride says that we are in control, and since our values govern our behavior, we can simply do life our way.
The 7 Habits of Highly Effective People: Powerful Lessons in Personal Change (ed. Simon and Schuster, 2004) - ISBN: 9780743272452