The reader of this treatise will perceive that I have omitted all reference to a certain class of crime, which has deluged Europe with human blood; a crime which raised those fatal piles, where living human bodies served as food for the flames, and where the blind multitude sought a pleasant spectacle and a sweet harmony from the low dull groans, emitted by wretched sufferers from volumes of black smoke, the smoke of human limbs, whilst their bones and still palpitating entrails were scorched and consumed by the flames. But reasonable men will see that the place, the age, and the subject suffer me not to inquire into the nature of such a crime. It would be too long and remote from my subject to show, how a perfect uniformity of thought ought, contrary to the practice of many countries, to be a necessity in a State; how opinions, which only differ by the most subtle and imperceptible degrees, and are altogether beyond the reach of human intelligence, can[232] yet convulse society, when one of them is not legally authorised in prefer............