This book is a mirror, an adviser, a critical guide for all. It allows man to discover man . Moreover, it allows the living being to know the nature, the general purpose and the value of life. If man is looking for happiness, he does not always really know what happiness is or how to find it. He needs a tool for that. Such is the preoccupation of this iconoclastic book. The will to happiness is a viaticum for all the fighters for life, happiness and power.