Mathematician, educator and Swiss writer of Dutch origin. From anarchist tendencies, he began to write at an early age, linking himself to the anti-colonial revolutionary movements in vogue at the time. A graduate in Mathematics from the University of Lausanne, he would dedicate his efforts mainly to teaching, applying as far as possible the anti-authoritarian budgets poured out by Jean-Jacques Rousseau in his emblematic work 'Emilio'; These essays, such as L'École et l'apprentissage de la docilité (1898), Mon internationalisme sentimental (1915), Le pédagogue n'aime pas les enfants (1917), À prendre et à laisser (1919), Le Roseau pensotant (1923) or Le Rire et les rieurs (1925), among others. However, Henri Roorda's most significant work is the unclassifiable and shocking autobiographical account of My Suicide (1925), of bare prose and sweeping discourse: in it, and in a sort of confession of extreme lucidity, the author examines the reasons that they will lead to commit suicide; Roorda, with a vital temperament and full possession of her physical and mental faculties, would end her life - a shot in the heart - on September 7, 1925, at the age of 54.