A tower which each of us never ceases to covet at the top. A summit which, morethan oftennot, is reserved only for the most resistant. And yet, many people engaged in different fields of activity, manage to cross the top of this tower while supporting the others thus forming a chain solidof support which allows all to be able to benefit from the benefits of the top of the tower. And of those who were supported, some are breaking the chain of support by preventing others from climbing to the top of the tower. Society is made up of several categories of people. Some people don't covet the top, don't even intend to climb it, and are often referred to as societal psychopaths. We have forgotten one thing about the tower, it is built for the progress of all according to .............................