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 could not Dante's Catholicism continue; but Luther's Protestantism must needs follow? Alas, nothing will continue.

I do not make much of 'Progress of the Species,' as handled in these times of ours; nor do I think you would care to hear much about it. The talk on that subject is too often of the most extravagant, confused sort. Yet I may say, the fact itself seems certain enough; nay we can trace out the inevitable necessity of it in the nature of things. Every man, as I have stated somewhere, is not only a learner but a doer: he learns with the mind given him what has been; but with the same mind he discovers farther, he invents and devises somewhat of his own. Absolutely without originality there is no man. No man whatever believes, or can believe, exactly what his grandfather believed: he enlarges somewhat, by fresh discovery, his view of the Universe, and consequently his Theorem of the Universe,—which is an infinite Universe, and can never be embraced wholly or finally by any view or Theorem, in any conceivable enlargement: he enlarges somewhat, I say; finds somewhat that was credible to his grandfather incredible to him, false to him, inconsistent with some new thing he has discovered or observed. It is the history of every man; and in the history of Mankind we see it summed-up into great historical amounts,—revolutions, new epochs. Dante's Mountain of Purgatory does not stand 'in the ocean of the other Hemisphere,' when Columbus has once sailed thither! Men find no such thing extant in the other Hemisphere. It is not there. It must cease to be believed to be there. So with all beliefs whatsoever in this world,—all Systems of Belief, and Systems of Practice that spring from these.

If we add now the melancholy fact, that when Belief waxes uncertain, Practice too becomes unsound, and errors, injustices and miseries everywhere more and more prevail, we shall see material enough for revolution. At all turns, a man who will do faithfully, needs to believe firmly. If he have to ask at every turn the world's suffrage; if he cannot dispense with the world's suffrage,