This paper transcribes and annotates five unpublished letters that Manuel María Gutiérrez, Álvaro Flórez Estrada and the Marquis of Valle Santoro respectively sent to Jean-Baptiste Say. An initial hypothesis holds the importance of this correspondence in order to argue the connection of the Spanish authors with the canonical works. We focus on several questions related to the transmission of economic ideas. First, the translation of Say’s work is a collective project structured around the Real Sociedad Económica de Amigos del País de Madrid. Secondly, we explain how the translator expurgates the condemnable passages in order to publish Say’s Traité d`économie politique in Spanish, those connected to the influence of religion on economic development and public education to be exact.
