L'homme raisonnable s'adapte au monde ; l'homme déraisonnable s'obstine à essayer d'adapter le monde à lui-même. Tout progrès dépend donc de l'homme déraisonnable.
The reasonable man adapts to the world; the unreasonable man persists in trying to adapt the world to himself. All progress therefore depends on the unreasonable man.
The reasonable man adapts himself to the world ; the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man.
— George Bernard ShawDublin 1856-Ayot Saint Lawrence, Hertfordshire, 1950