On the Just Punishment of Heretics
Alfonso de Castro O.F.M. (Author)
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The chief goal of this book is to fight for the Catholic Church, as a son for the honor of his mother, against those who teach the impunity of heretics, and defend it so that it may shown that she has decreed nothing unjust, and she has decreed nothing which is unbecoming a true mother. No one ever has discussed this subject. For even though many Catholic theologians and learned men have written against those men who teach the impunity of heretics, who argue with many and very evident reasons, in favor of the punishment of heretics, that the punishment of heretics is very just, yet none of them has proved that all those punishments, which were decreed by canon and civil law against heretics are just: nor about this matter did any of them ever discuss.