The inflexible integrity of the moral code is, to me, the secret of the authority, the dignity, the utility of History. If we may debase the currency… - John Dalberg-Acton, 1st Baron Acton

I cannot accept your canon that we are to judge Pope and King unlike other men, with a favorable presumption that they did no wrong. If there is any presumption it is the other way against holders of power, increasing as the power increases. Historic responsibility has to make up for the want of legal responsibility. Power tends to corrupt and absolute power corrupts absolutely. Great men are almost always bad men, even when they exercise influence and not authority: still more when you superadd the tendency or the certainty of corruption by authority. There is no worse heresy than that the office sanctifies the holder of it. That is the point at which the negation of Catholicism and the negation of Liberalism meet and keep high festival, and the end learns to justify the means.

To proclaim the Pope infallible was their compendious security against hostile States and Churches, against human liberty and authority, against disintegrating tolerance and rationalizing science, against error and sin.

Whenever a single definite object is made the supreme end of the State, be it the advantage of a class, the safety of the power of the country, the greatest happiness of the greatest number, or the support of any speculative idea, the State becomes for the time inevitably absolute. Liberty alone demands for its realisation the limitation of the public authority, for liberty is the only object which benefits all alike, and provokes no sincere opposition.