The aim of the present contribute is taking into account the speaking in connection with the tension between the social (scientifi c) trajectory and the fields through which this trajectory lives; this means to focus on the every-day-life world of each single ontological dimension (field, language). We will articulate our analysis and description in two parts. In the first part we will describe and construct a difference between the word and the speaking in (a field). Starting from, and using, the constructions of Florenskij and Bourdieu we will arrive to an homology between the word (and its relation with the tension subject-objects) and the speaking in (and its relation with the tension trajectory- field). In the second part we will analyze and describe the tension between the social (scientific) trajectory of John Nash and the fields that it crosses as a case study of our construction.