Imagine a philosopher in a permanent struggle with himself. One who published only one brief writing during his whole life, but who, like Socrates, never ceased to walk the path of dialectic. Dialectic between philosophy and religion, reason and faith, humanity and God, logical argumentation and poetic discourse, remarkable mastery of form and dissatisfaction with the constraints imposed by all form. Jules Lequier was a thinker tormented by enigmas that he wished to elucidate, first and foremost the enigma of human freedom; an enigmatic author himself, which Ghislain Deslandes's book progressively illuminates, until he appears in all his surprising complexity.