(1931-1991) was one of the most outstanding Latin American intellectuals of the twentieth century. His influence marked the vicissitudes of Marxism, political thought and revolutionary philosophy, and their ideas acted as a counterweight to adocenadas ideologies.

He was also the author of forewords, lectures, articles and translations. -After Key player in several publications and Present in Córdoba, Controversy in Mexico City and Buenos Aires Futura, their thoughts and their work ilu-mined areas of society and the past while promoted the renovation of the left