TWO:The knowledge of the true relations between a sovereign and his subjects, and of those between different nations; the revival of commerce by the light of philosophical truths, diffused by printing; and the silent international war of industry, the most humane and the most worthy of rational men��these are the fruits which we owe to the enlightenment of this century. But how few have examined and combated the cruelty of punishments, and the irregularities of criminal procedures, a part of legislation so[119] elementary and yet so neglected in almost the whole of Europe; and how few have sought, by a return to first principles, to dissipate the mistakes accumulated by many centuries, or to mitigate, with at least that force which belongs only to ascertained truths, the excessive caprice of ill-directed power, which has presented up to this time but one long example of lawful and cold-blooded atrocity! And yet the groans of the weak, sacrificed to the cruelty of the ignorant or to the indolence of the rich; the barbarous tortures, multiplied with a severity as useless as it is prodigal, for crimes either not proved or quite chimerical; the disgusting horrors of a prison, enhanced by that which is the cruellest executioner of the miserable��namely, uncertainty;��these ought to startle those rulers whose function it is to guide the opinion of men��s minds.My occupation is to cultivate philosophy in peace, and so to satisfy my three strongest passions, the love, that is, of literary fame, the love of liberty, and pity for the ills of mankind, slaves of so many errors. My conversion to philosophy only dates back five years, and I owe it to my perusal of the ��Lettres Persanes.�� The second work that completed my mental revolution was that of Helvetius. The latter forced me irresistibly into the way of truth, and aroused my attention for the first time to the blindness and miseries of humanity.