SIMONE DE BEAUVOIR. PRESIDENT OF THE WOMEN'S LIBERATION MOVEMENT. VINCENNES ; Simone de Beauvoir (1908-1986), French woman of letters, at the feminists' gathering organized by the MLF (Women's Liberation Movement), with her adopted daughter Sylvie Le Bon, philosophy teacher. Vincennes (France), June 17th, 1973. Photograph by Janine Niepce (1921-2007).