Giulio Girardi (Cairo, 1926-2012) was an Italian university professor, presbyter, theologian and philosopher. From 1948 he was professor of Philosophy and of Metaphysics to the Salesian University of Turin; In 1960 with the same position, in the Salesian University of Rome. He participated in the Second Vatican Council as an expert. For having decided to be with the base movements and to approach Marxism, in the year 1969 they expelled him of the Ateneo by "ideological divergences". He moved to Paris, where he taught Anthropology at the Faculty of Philosophy of the Catholic University and Introduction to Marxism at the Institute of Religious Sciences and Theologies. In the same years he taught Anthropology and Introduction to Marxism at the Higher Institute of Pastoral Lumen Vitae in Brussels. In these years he joined the movement "Christians for socialism" in Latin America and Europe. His open commitment to ideology and politics with the revolutionary movements led him to be expelled from the Catholic University of Paris in 1973 and the year following the Lumen Vitae in Brussels. In solidarity with him, François Houtart, Gustavo Gutiérrez and Paulo Freire also resigned. He continued teaching at the University of Lecce (Apulia, Italy) teaching History of Philosophy in 1977-1978, then at the University of Sassari (Sardinia, Italy) where he taught Political Philosophy from 1978 to 1996.