in this paper i take in account the most relevant aspects of the historical development of the instituto de investigaciones filosóficas at the unam. i divided this presentation in three stages: the origins, the institutional reinforcement and the expansion. such division allows me to understand the purposes, the directions, the steps forward and the achievements of this institution, focused in the founders and in the intellectual climate in which it comes out. in the same manner i intend to follow the proposals of the different directors and the impulse they gave to the development of the institute with very important academicals programs, like opening new areas for philosophical research, creating new programs for teaching philosophy, as well as the consolidation of very important editorial programs and the unceasing growth of the library "eduardo garcía máynez". in brief, i try to capture the importance of a vigorous and active philosophical community which work is recognized in other philosophical communities in and out of our country.