Its position as a leading institution in the training of the critical spirit has made ENS into France's premier training ground for future philosophers and producers of what has been called by some "French theory". Its position as a philosophical birthplace can be traced back to its very beginnings, with Victor Cousin a student in the early 19th century. Two ENS philosophers won the Nobel Prize in Literature for their writings, Henri Bergson and Jean-Paul Sartre. Raymond Aron, the founder of French anti-communist thought in the 1960s and Sartre's great adversary, was a student from the same year as Sartre, and they were both near contemporaries of phenomenologist Maurice Merleau-Ponty, musicologist Vladimir Jankélévitch and historian of philosophy Maurice de Gandillac. In Sèvres, in the ENS for young women, philosopher and mystic Simone Weil was accomplishing her years of study at the same time. Jean Hyppolite, the founder of Hegelian studies in France, also studied at the school at this time and later influenced many of its students. Epistemologists Georges Canguilhem and Jean Cavaillès, the latter also known as a Résistance hero, were educated at ENS as well.