Now, to a single-minded man, who is either brave enough or reckless enough to surrender himself wholly to one idea, and look neither right nor left, but only forward, what earthly consequences may follow is not material. Persecution strengthens him; and so he is sure he is right, whether his course end in a prison or on a throne is no matter at all. But men of this calibre are uncommon in any age or in any country very uncommon in this age and this country.
James Anthony Froude (1849). “The nemesis of faith”, p.137