Deleuze's Bergsonism is among the most fertile readings of Bergson's philosophy, along with the study by Janckelewitz, of an unjustly overlooked major thinker for decades, whose ideas must be understood for a sufficient comprehension of fundamental expressions of French philosophy to this day.

Deleuze's insightful analyses of the concepts created by Bergson—the intuition as a method, duration as an immediate datum, memory as a potential coexistence, and vital impetus as a movement of differentiation—and his dispute with Einstein regarding time activate the reader's attention.

Furthermore, the English edition of Bergsonism in 1991 rekindled interest in Bergson among Anglo-Saxon intellectuals. Additionally, a careful study of it contributes to the deepening of Deleuze's philosophy, as Bergson is one of the three key philosophers—along with Nietzsche and Spinoza—with whom he critically engaged.

Finally, delving into the philosophical thought of Bergson and Deleuze promotes a different approach to the evolution of contemporary philosophy in France, which interests us not only on a theoretical level but also on an ethical-practical level, as it is infused with a strong emancipatory dynamic.

Translator's Preface to the Second Edition || Translator's Introductory Note || Intuition as a Method (The Five Rules of the Method) || Duration as an Immediate Datum (Theory of Multiplicities) || Memory as a Potential Coexistence (Ontology of the Past and Psychology of Memory) || One or Multiple Durations? (Duration and Simultaneity) || Vital Impetus as a Movement of Differentiation (Life, Thought, and Society) || Appendix: Giannis Prelorentzis, “The Influence of Bergson's Philosophy of Nature and Philosophy of Life on Deleuze's Philosophical Thought” || Bibliography || Name Index || Vocabulary