Quincy, February 2, 1816.

Dear Sir,—I know not what to think of your letter of the 11th of January, but that it is one of the most consolatory I ever received.

To trace the commencement of the Reformation, I suspect we must go farther back than Borgia, or even Huss or Wickliff, and I want the Acta Sanctorum to assist me in this research. That stupendous monument of human hypocrisy and fanaticism, the church of St. Peter at Rome, which was a century and a half in building, excited the ambition of Leo the Xth, who believed no more of the Christian religion than Diderot, to finish it; and finding St. Peter's pence insufficient, he deluged all Europe with indulgences for sale, and excited Luther to controvert his authority to grant them. Luther, and his associates and followers, went less than half way in detecting the corruptions of Christianity, but they acquired reverence and authority among their followers almost as absolute as that of the Popes had been.

To enter into details would be endless; but I agree with you, that the natural effect of science and arts is to erect public opinion into a censor, which must in some degree be respected by all.

There is no difference of opinion or feeling between us, concerning the partition of Poland, the intended partitions of Pilnitz, or the more daring partitions of Vienna.

Your question "How the apostasy from national rectitude can be accounted for?"—is too deep and wide for my capacity to answer. I leave Fisher Ames to dogmatize up the affairs of Europe and mankind. I have done too much in this way. A burned child dreads the fire. I can only say at present, that it should seem that human reason, and human conscience, though I believe there are such things, are not a match for human passions, human imaginations, and human enthusiasm. You, however, I believe, have hit one. Mark, "the fires the governments of Europe felt kindling under their seats;" and I will hazard a shot at another, the priests of all nations imagined they felt approaching such flames, as they had so often kindled about the bodies of honest men. Priests and politicians, never before, so suddenly and so unanimously concurred in re-establishing darkness and ignorance, superstition and despotism. The morality of Tacitus is the morality of patriotism, and Britain and France have adopted his creed; i. e., that all things were made for Rome. "Jura negat sibi lata, nihil non arrogat armis," said Achilles. "Laws were not made for me," said the Regent of France, and his cardinal minister Du Bois. The universe was made for me, says man. Jesus despised and condemned such patriotism; but what nation, or what christian, has adopted his system? He was, as you say, "the most benevolent Being that ever appeared on earth." France and England, Bourbons and Bonaparte, and all the sovereigns at Vienna, have acted on the same principle. "All things were made for my use. So man for mine, replies a pampered goose." The philosophers of the eighteenth century have acted on the same principle. When it is to combat evil, 'tis lawful to employ the devil. Bonus populus vult decipi, decipiatur. They have employed the same falsehood, the same deceit, which philosophers and priests of all ages have employed for their own selfish purposes. We now know how their efforts have succeeded. The old deceivers have triumphed over the new. Truth must be more respected than it has ever been, before any great improvement can be expected in the condition of mankind. As Rochfaucauld his maxims drew "from history and from practice," I believe them true. From the whole nature of man, moral, intellectual, and physical, he did not draw them.

We must come to the principles of Jesus. But when will all men and all nations do as they would be done by? Forgive all injuries, and love their enemies as themselves? I leave those profound philosophers, whose sagacity perceives the perfectibility of human nature; and those illuminated theologians, who expect the Apocalyptic reign;—to enjoy their transporting hopes, provided always that they will not engage us in crusades and French Revolutions, nor burn us for doubting. My spirit of prophecy reaches no farther than, New England GUESSES.

You ask, how it has happened that all Europe has acted on the principle, "that Power was Right." I know not what answer to give you, but this, that Power always sincerely, conscientiously, de tres bon foi, believes itself right. Power always thinks it has a great soul, and vast views, beyond the comprehension of the weak; and that it is doing God service, when it is violating all his laws. Our passions, ambition, avarice, love, resentment, &c., possess so much metaphysical subtlety, and so much overpowering eloquence, that they insinuate themselves into the understanding and the conscience, and convert both to their party; and I may be deceived as much as any of them, when I say, that Power must never be trusted without a check.

Morgan has misrepresented my guess. There is not a word in my letter about "a million of human beings." Civil wars, of an hundred years, throughout Europe, were guessed at; and this is broad enough for your ideas; for eighteen or twenty millions would be a moderate computation for a century of civil wars throughout Europe. I still pray that a century of civil wars, may not desolate Europe and America too, south and north.

Your speculations into futurity in Europe are so probable, that I can suggest no doubt to their disadvantage. All will depend on the progress of knowledge. But how shall knowledge advance? Independent of temporal and spiritual power, the course of science and literature is obstructed and discouraged by so many causes that it is to be feared their motions will be slow. I have just finished reading four volumes of D'Israeli's—two on the "Calamities," and two on the "Quarrels of Authors." These would be sufficient to show that, slow rises genius by poverty and envy oppressed. Even Newton, and Locke, and Grotius could not escape. France could furnish four other volumes of the woes and wars of authors.