Liberty of thought is an impregnable fortress that no human power can force. Violence can never convince, it only makes hypocrites. When kings take it upon themselves to direct in matters of religion, instead of protecting it, they bring it into bondage. You should, therefore, grant to all a legal toleration. Not as approving everything indifferently, but as tolerating with patience what God tolerates. Endeavour in a proper manner to restore such as are misled, but never by any measures but those of gentle and benevolent persuasion.

– François de Salignac de la Mothe-Fénelon

[Fénelon, Roman Catholic archbishop of Cambrai, addressed these words to a prince some 300 years ago. No wonder he was out of favour with Louis XIV, king of France, and with the Pope.]