“It is vain to pretend to teach the principles and contents of Hume's philosophy. And the problem is not to leave room for controversy, but to understand that we are not dealing with a system, that the principles are obscure and that the contents are skeptical. The career of commentary is indefinitely open, as long as one does not fall into dogmatism. Through a constantly deceptive rationality, Hume brings all those who are interested in him, commentators included, back to the spirit of philosophy. In a word, and this is the best reason for the commentary, Hume does not teach, he invites us to philosophize” (Michel Malherbe). This short work, Hume's masterpiece, is an open door into his thought, organized into thematic chapters which take us from the origin of ideas to miracles via the reason of animals. Following the meanders of his reflection, we too can hope one day to touch the liberating experience of philosophy.