James Allen 
Man 
King of Mind, Body, and Circumstance

The problem of life consists in learning how to live. It is like the problem of addition or subtraction to the schoolboy. When mastered, all difficulty disappears, and the problem has vanished. All the problems of life, whether they be social, political, or religious, subsist in ignorance and wrong-living. As they are solved in the heart of each individual, they will be solved in the mass of men.