In 1885 this section of the Rue de l’abbé de L’Epée was given the name of the French mathematician and founder (1798-1857) of the positivist philosophical school
A flat in the imposing No. 3 belonged to the parents of Simone Weil, and this was where she met with Trotksy on 30 December 1933 and hid him for a few days during a clandestine visit to Paris. Trotsky took the decision that night to move to found the Fourth International.
A plaque on the wall states only that Simon Weil lived there from 1929 until 1940 and that she was a philosopher.