The Three Pillars of Lifelong Success

I consider the following as the three greatest pillars of success and lifelong happiness:
(1)    The ability to understand the fundamental principles  that govern that which we desire to do, be or have;
(2)    The willpower to acquire any knowledge or skills we need to have in place in order to do, be or have that which we desire;
(3)    The level of wisdom we have to know when to accept or reject any physical and emotional limitations that may stand in our way to do, be or have what we desire.