Abstract

The thesis that humanity progresses in a lawlike manner from inferior states (of wellbeing, cognitive skills, culture, etc.) to superior ones dominated eighteenth- and nineteenth- century thought, including authors otherwise as diverse as Kant and Ernst Haeckel. Positioning himself against this philosophically and scientifically popular view, Nietzsche suggests that humanity is in a prolonged state of decline. I argue that Nietzsche’s rejection of the thesis that progress is inevitable is a product of his acceptance of Lamarck’s use-and-disuse theory of evolution and his belief that society selects for traits beneficial to society and negatively selects for traits that promote individual flourishing. This explains Nietzsche’s emphasis on self-development as cultivating traits that Nietzsche views as valuable and that would, by Lamarck’s theory of evolution, become heritable and so help steer our evolutionary trajectory, correcting our decline.