In this series of three lectures -shortened in one long paper- is presented the philosophical, sociological and mythical account of the links between humans and non-humans; the first section explores the notion of translation in order to give activity back to objects, the second follows empirical examples of technical systems and the third offers a mythical account of how humans and techniques co-evolved. The general purpose of the article is to show that there are many ways to escape the dualist paradigm separating humans and non-humans.