In this document a brief route next to science and the technology becomes, from remote times like the age of stone, passing by Greece of Platon and Aristoteles, to arriving at the modern time inaugurated by Descartes and Galileo in which the western modern conception of the world is instituted definitively. The great disadvantages are specially that can generate this way to see the world, from the environmental point of view and the behavior of the man in this surroundings of modernity is questioned from the ethics. One considers the necessity to carry out a reconstruction of the different typical ethical and pedagogical concepts from modernity and the exigency to create new ones, based on the logics of the complexity, that trigger a new conception of the relation man- nature based on the respect, that it evaluates the old conceptions based on operateable resource. Doubtlessly, the present life is developed in urban means, for that reason it is tried to put in context all this exposition within this means, to include/understand of one better way all the threads that are tiled around the city.