The development of his opinions in favour of the Liberal movement in Protestant theology led to his resigning the post six years later.
He founded the Anti-Jesuite, afterwards the Réformation au XIXe siècle, in which he advocated the separation of the Church from the State; but he gradually abandoned Protestant doctrine.
Eventually he settled in Paris, where he at once attracted attention by brilliant literary criticisms, at first chiefly on great foreign writers, contributed to the Revue des deux mondes.
He was elected municipal councillor at Versailles in 1870, deputy to the National Assembly for the department Seine-et-Oise in 1871 and senator for life in 1875.
[2] Towards the end of his life, he devoted self mainly to literary and general criticism, and was for many years one of the ablest contributors to Le Temps.