ABSTRACT
The scientific world-view has indeed marginalized so-called pre- or non-scientific outlooks and relegated them into the realm of fantasy or even superstition. Throughout history, humans have held a certain image of the world, constituted of the three essential components God, humanity, and the rest of the Creation. The Christian world-view has undergone several transformations. The world-view is an essential part of human philosophy, and it inspires us to respect, or to despise. Values are central to human decisions and actions. They are the sources of an individual's behaviour and of a society's norms, concerning the relationships to both people and nature. Values exist as a duality or couple, such that they are characterized by fixed terms; people can imagine them as two extremes lying at either end of a continuum. Technical innovations have always meant a passage towards secular values and a greater impact of man on the ecosystem.
