Created by the father of Op Art, Victor Vasarely, *Le discours de la méthode* is a monumental portfolio of 24 works that bridges the worlds of science, philosophy, and visual perception. The collection brings together a diverse range of media — including Plexiglas and aluminium multiples, screenprints, lithographs, and collages — paired with the foundational text of René Descartes, drawing a deliberate parallel between the rationalist principles of the 17th-century philosopher and Vasarely's own systematic exploration of form, color, and optical illusion. Together, the works transform Descartes' intellectual framework into a vivid, kinetic visual language, inviting the viewer to experience reason itself as a dynamic and sensory phenomenon.