title: Édouard Le Roy
text: Édouard Louis Emmanuel Julien Le Roy (; 18 June 1870 in Paris – 10 November 1954 in Paris) was a French philosopher and mathematician.
  
  Life
  Le Roy entered the École Normale Supérieure in 1892, and received the agrégation in mathematics in 1895. He became Doctor in Sciences in 1898, taught in several high schools, and became in 1909 professor of mathematics at the Lycée Saint-Louis in Paris.
  
  From then on, Le Roy took an important interest in philosophy and metaphysics. A friend of Teilhard de Chardin and Henri Bergson's closer disciple, he succeeded Bergson at the College of France (1922) and, in 1945, at the Académie française. In 1919, Le Roy was also elected member of the Académie des Sciences morales et politiques.
  
  Le Roy was especially interested in the relations between science and morality. Along with Henri Poincaré and Pierre Duhem, he supported a conventionalist thesis on the foundation of mathematics. Although a fervent Catholic, he extended this conventionalist theory to revealed truths, which did not, according to him, withdraw any of their strength. He rejected in the domain of religious dogmas, abstract reasonings and speculative theology in favour of instinctive faith, heart and sentiment. He was one of those close to Bergson who encouraged him to turn to the study of mysticism, explored in his later works. His conventionalism led his works, charged of modernism, to be placed on the Index by the Holy See.
  
  Works
  Théorie du potentiel newtonien : leçons professées à la Sorbonne pendant le premier semestre (1894-1895) (1896)
  Sur l'intégration des équations de chaleur (1898)
  Sur les séries divergentes et les fonctions définies par un développement de Taylor (1899)
  Science et Philosophie (1899)
  Dogme et Critique (1907) 
  A New Philosophy: Henri Bergson (Une philosophie nouvelle : Henri Bergson, 1912)
  What Is a Dogma? (1918)
   Qu'est-ce-que la Science ?: réponse à André Metz (1926)   
  L'Exigence idéaliste et le fait de l'évolution (1927)   
  Les Origines humaines et l'évolution de l'intelligence (1928)  
  La Pensée Intuitive. Le problème de Dieu (1929)
   Introduction à l'étude du problème religieux (1944)   
  Discours de réception (1946)
  Essai d'une philosophie première (1956)
  Bergson et Bergsonisme (1947)
   Essai d'une philosophie première : l'exigence idéaliste et l'exigence morale, 2 vol., posthumous (1956-1958)
  
  See also
  Noosphere
  Pragmatism
  
  References
  
  External links
   
   
   A New Philosophy: Henri Bergson
  
  1870 births
  1954 deaths
  Writers from Paris
  École Normale Supérieure alumni
  Academic staff of the Collège de France
  French mathematicians
  20th-century French philosophers
  Henri Bergson
  Members of the Académie des sciences morales et politiques
  Members of the Académie Française
  Catholic philosophers