This 1959 novel is one of the most popular and celebrated science fiction novels of all time. It’s set in the years following an atomic war, it portrays religion in a relatively favorable way (in contrast to the skeptical or dismissive attitude of much other SF), and it dwells on the theme of man’s destiny, and its possibly inevitable fate in cycles of building and self-destruction. It’s sober and deadly-serious in parts, and it’s also quite funny in parts.

As this book is so well-known, I’ll summarize the plot only briefly. The book is in three parts.

The first part, Fiat Homo (Let there be man), is set some 600 years after a ‘Flame Deluge’ has destroyed civilization. (Some years pass in this section, at the end of which it’s the year 3174, so the book’s nuclear war apparently doesn’t take place until the year 2500 or so.) In the desert southwest Brother Francis Gerard at the Leibowitz Abbey stumbles upon (what we recognize as) an ancient fallout shelter, and discovers artifacts which may have belonged to Leibowitz himself – including what we realizes are radio parts and a blueprint, but which no one at the abbey understands in the slightest. Messengers arrive from New Rome, because Leibowitz is under consideration for canonization, and there’s a concern the artifacts may be fake and would jeopardize that process. Eventually New Rome approves, and Brother Gerard is allowed to attend the ceremony, though on his return journey (– spoiler –) he is killed by mutant ‘sport’.

The second part, Fiat Lux (Let there be light) is set 600 years later. Society is recovering, as a political leader in Texarkana is anxious to unite the continent, dealing with various local tribes to do so – planning to wipe them out with cattle plagues if necessary. A secular scholar, Thon Taddeo, still curious about the authenticity of the Leibowitz documents, travels to the abbey, where the brothers have managed to re-invent a dynamo and an arc lamp. Taddeo studies the documents and reports his findings, careful not to offend the brothers. News come of another war, and a message that the surviving mayor of Texarkana has broken with the church.

The third part, Fiat Voluntas Tua (Thy will be done) is set another 600 years later. Technological society has recovered, and there are spaceships again, and even colonies on worlds of several stars. This section reads like a contemporary political thriller, with rumors about use of atomic weapons. A secret plan of the church goes into effect – to launch its own starship to Alpha Centauri, with sufficient volunteers to establish a new church hierarchy. As the bombs fall and the abbey is destroyed, priests at the launch site in New Rome lift children into the rocket ship, and the ship takes off, escaping the earth.

Major points

  • What I had mismembered from reading this novel decades ago was the nature of the escape at the end. The novel’s arc goes from destruction to civilization to destruction again – with the rocket launched by the Church implicitly saving the last gasp of humanity to survive on another world. But – humanity has already settled other planets! (We’re told this at the beginning of Part Three.) The only thing being saved at the end here is the church itself. That’s why there’s concern in the final weeks about the proper composition of the crew on the rocket—they need the correct church officials on the new planet so they can perpetuate church hierarchy. The book leaves you with the flavor that the church has saved humanity. But it hasn’t.
  • Given that understanding, the novel still gives great credit to the church for preserving knowledge over hundreds of years that otherwise would be lost. But—it’s always ‘the’ church, the Catholic church of course, and there’s never the slightest acknowledgement that there might be other religions in the world, or even protestant churches. (Ironically, it was Islam in Europe’s Dark Ages that preserved knowledge of the Greeks that the Christian church condemned.)
  • At the same time, as the author takes the church business very seriously – as another example, the passionate debate about euthanasia for those poisoned by radiation (Ch 27) — he surely is wise to the ways of human culture and how stories grow in the telling, how other species might think the world created for themselves, and so on.

Other interesting notes and quotes

  • P62, how after the first atomic war, the populists strike out at the elites [to use modern terms] to destroy what’s left:

    So it was that, after the Deluge, the Fallout, and plagues, the madness, the confusion of tongues, the rate, there began the bloodletting of the Simplification, when remnants of mankind had torn other remnants limb from limb, killing rulers, scientists, leaders, technicians, teachers, and whatever person the leaders of the maddened mobs said deserved death for having helped to make the Earth what it had become. Nothing had been so hateful in the sight of these mobs as the man of learning, at first because they had served the princes, but then later because they refused to join in the bloodletting and tries to oppose the mobs, calling the crowds ‘bloodthirsty simpletons.’

  • Is it odd that Brother Francis takes it upon himself to create an illuminated copy of the ancient blueprint he’s found? Perhaps, like the medieval monks, these latter brothers have little else better to do.
  • There’s a fantasy element in the novel in the implication that the pilgrim at the beginning is the actual Leibowitz – or is he the famed Wandering Jew? Note, p168b, how the hermit seems to remember thirty-two centuries.
  • There is occasional broad humor. How Brother Francis is dimwitted; the battle with the Autoscribe machine in Chapter 24; the story of the brother’s discovery grows in the telling, p88:

    Brother Francis closed his eyes and rubbed his forehead. He had told the simple truth to fellow novices. Fellow novices had whispered among themselves. Novices had told the story to travelers. Travelers had repeated it to travelers. Until finally—this!

    “No halo?” “No heavenly choir?” “What about the carpet of roses that grew up where he walked?”

  • Who decides? 220b; debate 221.9. On the responsibility of academicians to control the power they give rulers: p220.8

    But you promise to begin restoring Man’s control over Nature. But who will govern he use of the power to control natural forces? Who will use it? To what end? How will you hold him in check?

  • In Chapter 22 (p228) the scholar discovers a book that suggests the man is not descended from Adam, but is a servant species created by the original humanity. Others reply that what he is reading is just a play, and speculate on his motives. (After enough time has passed, how can you tell between history, myth, and fiction?)
  • Ch 12, a scholar and a politician debate why civilizations fall.

    “How can a great and wise civilization have destroyed itself so completely?”

    “Perhaps by being materially great and materially wise, and nothing else.”

    “…during the time of the anti-popes, how many schismatic Orders were fabricating their own versions of things, and passing off their versions as the work of earlier men. You can’t know, you can’t really know. … But where is the evidence of the kind of machines your historians tell us they had in those days? Where are the remains of self-moving carts, of flying machines?”

    “Beaten into plowshares and hoes.”

  • Each section ends with an appearance by buzzards, Section 2, p239:

    As always the wild black scavengers of the skies laid their eggs in season and lovingly bed their young. They soared high over prairies and mountains and plains, searching for the fulfillment of that share of life’s destiny which was theirs according to the plan of Nature. Their philosophers demonstrated by unaided reason alone that the Supreme Cathartes aura regnans had created the world especially for buzzards. They worshiped him with hearty appetites for many centuries.

    And the book ends with a rather different passage about sharks.

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