Answer me, you who believe that animals are only machines. Has nature arranged for this animal to have all the machinery of feelings only in order for it not to have any at all?
If the bookseller happens to desire a privilege for his merchandise, whether he is selling Rabelais or the Fathers of the Church, the magistrate grants the privilege without answering for the contents of the book. - Voltaire (Francois Marie Arouet Voltaire
I read these words which are the sum of all moral philosophy, and which cut short all the disputes of the casuists: When in doubt if an action is good or bad, refrain.