Les Lettristes sont irrécupérables jusqu'à la société de l'éternité concrète, paradisiaque

Isidore Isou (1925, Botosani, Romania – 2007, Paris), the ingenious Romanian poet, artist, economist, novelist, film-maker, choreographer and theoretician, created in 1945 the last avant-garde movement to attempt to overthrow everything – Lettrism, a movement that would embrace personalities as diverse as Gabriel Pomerand, Maurice Lemaître, Gil J Wolman and Guy Debord. Isou is the author of a huge body of work centered on the act of creation, for which he proposed a method, Creatics, which is a systematic approach to understanding and grasping the mechanics of creation.

See also Frédéric Acquaviva: Isidore Isou; Frédéric Alix : Penser l'art et le monde après 1945 – Isidore Isou, essai d'archéologie d'une pensée; Fragments pour Isidore Isou.