Abstract
Two epistemological problems related to the topic of "mobilization of labor" are the subject of this essay. The first problem is how to access multidimensional and complex realities involved in the "labor"; the second raises the question of the diversity of skills needed to illuminate the debate on an issue that is at the heart of social life, no matter where it is reserved for productive activities. An inescapable path to understand the situation of "labor" and the terms and conditions of their "mobilization" access lies in an effort to understand the work as a whole human, historically and socially constituted activities. That is, the set of activities that enable human groups meet their life in their own mode of existence.