Early life
His father died when Sartre was a year old, and his grandfather Charles Schweitzer raised him in Meudon, introducing him to mathematics and classical literature. Sartre was born in Paris on June 21, 1905, to Jean Baptiste Sartre, a naval officer, and Anne Marie Schweitzer, cousin of Nobel laureate Albert Schweitzer. After his mother remarried in 1917, Sartre suffered under his controlling stepfather, an experience that fueled his lifelong rebellion against authority. He attended Lycee Montaigne, Lycee Henri IV, Lycee Louis-le-Grand, and later the École Normale Supérieure and the University of Paris, where he studied philosophy under the influence of Henri Bergson, William James, Kant, Nietzsche, Husserl, Kierkegaard, Hegel, Marx, and Heidegger.