Evolutionary theory allows Juan Trillos the pretext to delve into what, for science, could seem like a false dilemma when asking: what comes first, man or language?, a game in which he plays very well, offering us answers that result from matching the pieces on a board in which Darwin, Heidegger, Briceño, Havelock, Martín Serrano, Chomsky, Ong or Llinás, among others, move with great skill. That is, putting related teachers and theories in harmony or in open contradiction, but serving the ultimate intention of the author. Searching for the human being, as he states, is only possible within the framework of his social relationships; No study of language to reach it could be done outside of its environment, contrary to what the theorists of the contemporary «agora» or «the internet galaxy», who place man outside of his social structure and place him in the narrow circle of what they call a network. The essential work that linguistics – Jakobson proposes – at all levels, has to develop in the current era, consists in clarifying the relationship between the general meaning of a verbal sign and its context, since «contextual dependence» is the decisive property of our language, and it is prior to creativity.