What I have aimed to report in this book is the contribution of the experiences that I have had that have nourished my reflection and my analysis. This approach is more logical than that consisting of “letting the facts speak for themselves,” which they clearly will never do, or to interpret them in a “literal” or “objective” fashion. In this case, as we have seen, interpretation is necessarily the fruit of concepts or hypotheses, be they formulated or not, that prevail in the society or environment, scientific or not, in which we live.
