2. THE REVOLUTION IN THE IDEAS

            The crisis passes from these deep strata to the ideological terrain. Indeed, as Paul Bourget makes evident in his celebrated work Le Demon du Midi, "One must live as one thinks, under pain of sooner or later ending up thinking as one has lived." ⁹ Inspired by the disorder of these deep tendencies, new doctrines burst forth. In the beginning, they at times seek a modus vivendi with the old doctrines, expressing themselves in such a way as to maintain a semblance of harmony with them. Generally, however, this soon breaks out into open warfare.