The thirties constituted in many respects a rich and revealing moment of the history of political commitment of the French intellectuals. Within this conjuncture, the Spanish civil war, by its religious and ideological components, assumed for them a very special importance. The public engagements of Georges Bernanos, François Mauriac and Emmanuel Mounier rather clearly illustrate the cristallization of a new vocation of commitment to which the Spanish events conferred an irresistible character. Although they participated, at different levels, to the big passionate movement which the event generated in France in July 1936, all three agreed, from 1937 on, to recognize that totalitarisms and fascisms then constituted the most dangerous agents in an ill Europe. Finally, one can say that by refusing the temptation which leads men to renunciation, fanatism or personal unexistance, their political commitment has certainly illustrated their will to regive a meaning to the human.