The inscription above the entrance reads AUX GRANDS HOMMES LA PATRIE RECONNAISSANTE ( "To the great men, the grateful homeland"). By burying its great men in the Panthéon, the Nation acknowledges the honour it received from them. As such, interment here is severely restricted and is allowed only by a parliamentary act for "National Heroes". Similar high honours exist in Les Invalides for historical military leaders such as Napoléon, Turenne and Vauban.