“But it is said that the writer of that book was inspired. Examine therefore candidly what evidence there is of his having been inspired. The pretension is entitled to your inquiry, because millions believe it.”

Part 2 “Four Subjective Arguments”, Chapter 2 “The Argument from Prophecy (and the Bible Codes)” (p. 63)
Irreligion: A Mathematician Explains Why the Arguments for God Just Don’t Add Up (2008)

Source: The Devil's Dictionary (1911)
Context: Christian, n. One who believes that the New Testament is a divinely inspired book admirably suited to the spiritual needs of his neighbor. One who follows the teachings of Christ so long as they are not inconsistent with a life of sin.

What Would You Substitute for the Bible as a Moral Guide? (1900)
Context: All “inspired books,” teaching that what the supernatural commands is right, and right because commanded, and that what the supernatural prohibits is wrong, and wrong because prohibited, are absurdly unphilosophic. And all “inspired books,” teaching that only those who obey the commands of the supernatural are, or can be, truly virtuous, and that unquestioning faith will be rewarded with eternal joy, are grossly immoral. Again I say: Intelligence is the only moral guide.

Rome, or Reason? A Reply to Cardinal Manning. Part I. The North American Review (1888)
Context: "Whosoever will be saved, before all things it is necessary that he hold the Catholic faith." It is not necessary, before all things, that he be good, honest, merciful, charitable and just. Creed is more important than conduct. The most important of all things is, that he hold the Catholic faith. There were thousands of years during which it was not necessary to hold that faith, because that faith did not exist; and yet during that time the virtues were just as important as now, just as important as they ever can be. Millions of the noblest of the human race never heard of this creed. Millions of the bravest and best have heard of it, examined, and rejected it. Millions of the most infamous have believed it, and because of their belief, or notwithstanding their belief, have murdered millions of their fellows. We know that men can be, have been, and are just as wicked with it as without it.

Letter to Thomas Jefferson (23 January 1825), published in Letters: The Complete Correspondence Between Thomas Jefferson and Abigail and John Adams (UNC Press, 1988), p. 607
1820s
Context: We think ourselves possessed, or, at least, we boast that we are so, of liberty of conscience on all subjects, and of the right of free inquiry and private judgment in all cases, and yet how far are we from these exalted privileges in fact! There exists, I believe, throughout the whole Christian world, a law which makes it blasphemy to deny or doubt the divine inspiration of all the books of the Old and New Testaments, from Genesis to Revelations. In most countries of Europe it is punished by fire at the stake, or the rack, or the wheel. In England itself it is punished by boring through the tongue with a poker. In America it is not better; even in our own Massachusetts, which I believe, upon the whole, is as temperate and moderate in religious zeal as most of the States, a law was made in the latter end of the last century, repealing the cruel punishments of the former laws, but substituting fine and imprisonment upon all those blasphemers upon any book of the Old Testament or New. Now, what free inquiry, when a writer must surely encounter the risk of fine or imprisonment for adducing any argument for investigating into the divine authority of those books? Who would run the risk of translating Dupuis? But I cannot enlarge upon this subject, though I have it much at heart. I think such laws a great embarrassment, great obstructions to the improvement of the human mind. Books that cannot bear examination, certainly ought not to be established as divine inspiration by penal laws. It is true, few persons appear desirous to put such laws in execution, and it is also true that some few persons are hardy enough to venture to depart from them. But as long as they continue in force as laws, the human mind must make an awkward and clumsy progress in its investigations. I wish they were repealed. The substance and essence of Christianity, as I understand it, is eternal and unchangeable, and will bear examination forever, but it has been mixed with extraneous ingredients, which I think will not bear examination, and they ought to be separated.

H. G. Wells The Outline of History (1920) p. vii.
Criticism of The Martyrdom of Man

Sunset and Evening Star (New York: Macmillan, 1954) p. 322.

William of Baskerville
Source: The Name of the Rose (1980)
Context: Books are not made to be believed, but to be subjected to inquiry. When we consider a book, we mustn't ask ourselves what it says but what it means...