This research will try to clarify the fundamental principles that the School of Architecture and Design of the Pontificia Universidad Católica de Valparaiso, Chile, has worked throughout its development, focusing on the concepts of observation and observation, understood as fundamental elements of A process of transmission of disciplinary tools and at the same time, as elements of the formative process that this school proposes. The assumption that emerges from this research is that these concepts underlie the components that allow us to clarify the dimensions that make up the ethos of the school, which we assume is based on the relation architecture - poetry, artistic orientation that this school supports. We will then try to identify those constituent elements of the ethos that are evidenced, in order to delve in and elucidate the underlying ethos, which we can assume present in the discursive elements that this school unfolds, being oral transmission, fundamental texts and especially The exercise of its practices, that which as part of its training process, will reveal or make it possible to reveal those aspects that for this research allow to clarify a way of relating between design discipline and the ethos that animates it, which is assumed here, founded In the praxis of a way of seeing reality, the observation and that is now faced with another look, which in the words of this research we call as an underlying ethos, generated from the same sense that the exercise of the praxis of Observation provokes. We then deal with the formation of Men, let us say of a humanist ethic of forming men, a subject characteristic of modernity, but, apparently of this research, it becomes necessary to proceed with another vision, to put it in question with another perspective Contemporary, let us say, in the light of an ethics to form subjects. The question at stake here is to elucidate the extent to which this supposedly underlying ethos corresponds to a look that approximates Foucault s proposal for the Greek ethos, since the e (ad) generates a clear Approach to the Greek way that Foucault points out as care of itself and this as a fundamental element for the conformation of the ethos that this school builds. This search for a model of own formation that this school develops, finds roots in a heap of philosophical foundations, for that reason, it is believed then, that one must attend to these foundations, both explicit and not explicit. If this school is founded on the search for its own look (its sense of originality), that is, from the establishment of a language for the formation of a look of the subject, how can we conceive a way of training that attends to the Contemporary needs to rediscover the meaning of a formation of subjects? And in this perspective, what then is the observation? And why do we suppose there is an act of observation that allows such transmission of the ethos of this school?