In 1728 he took his charge to Italy, where he met Lodovico Muratori, Montesquieu and the economist John Law, and to Holland where he met several of the Collegialists and Jean Barbeyrac, a prominent advocate of Moderation.
In reply to Jean Barbeyrac, he wrote The Spirit of Infidelity Detected, which he republished in 1735.
Jean-Paul Sartre | Jean-Jacques Rousseau | Jean Cocteau | Jean Genet | Jean-Luc Godard | Wyclef Jean | Jean Racine | Jean Chrétien | Jean Michel Jarre | Jean Paul Gaultier | Jean Nouvel | Jean-Michel Basquiat | Jean Giraud | Jean Sibelius | Jean-Luc Ponty | Jean-Baptiste-Camille Corot | Jean-Claude Van Damme | Jean Renoir | Jean-Pierre Rampal | Jean-Léon Gérôme | Jean Harlow | Jean Anouilh | Billie Jean King | Jean Giraudoux | Jean-Bertrand Aristide | Jean Baudrillard | Jean-Pierre Thiollet | Jean-Martin Charcot | Jean Gabin | Jean de Florette |