A Purely Natural Theology

(First published at Desicritics)

As soon as I finished reading The Varieties of Scientific Experience – A Personal View of the Search for God, an anthology of Carl Sagan’s 1985 Gifford lectures in Natural Theology, I wanted to grab every person on this ‘pale blue dot’ planet by the shoulders, and ask him/her to read it. Sagan was a man who, per Ann Duryan, the book’s editor, “spoke extemporaneously in nearly perfect paragraphs”. Here’s a typical passage.

‘By far the best way I know to engage the religious sensibility, the sense of awe, is to look up on a clear night…every culture has felt a sense of awe and wonder looking at the sky. This is reflected throughout the world in both science and religion. Thomas Carlyle said that wonder is the basis of worship. And Einstein said, “I maintain that the cosmic religious feeling is the strongest and noblest motive for scientific research.” So if Carlyle and Einstein agree on something, it has a modest possibility of even being right.’

This is about as poetic as Kabir, Meera and Bulle Shah will ever get.

Sagan’s tone in these lectures is benign and almost avuncular; only the patently prissy would accuse him of disrespect. His gifts as a science writer are many. He has a keen eye for the beauty in every facet of human inquiry-literature, art, science of course, and even religion. He has the sort of wit that pokes to tickle, not to hurt. For instance, when pointing out the obviously anthropocentric view of the afterlife, he recites Rupert Brooke’s Heaven. And here’s a snippet from a post-lecture Q&A session.

Q: What is your opinion on the nature of the origins of intelligent life in the universe?

A: I’m for it!

The book is rich in poetry (that of rhyme as well as reason), artists’ depictions of astronomical phenomena, and of course those breathtakingly wondrous NASA photographs. Sagan dazzles us even when citing numbers - a couple of hundred thousand million suns in the Milky Way, ten to hundred times as many galaxies in the universe, and an equation attempting to estimate the number of intelligent civilizations in our galaxy. Above all, his clear yet sophisticated ethics give these talks a halo of nobility. For instance, he rejects miracles not because they’re absurd but because, following Democritus and Hume, the likelihood of nature changing its course is much smaller than that of a person lying. Or consider his nuanced take on the preserve-destroy conflict innate in civilizations.

‘ [It is] a conflict within the human heart…between the bureaucratic, hierarchical, aggressive parts of our nature, which in a neurophysiological sense we share with our reptilian ancestors, and the other parts of our nature, the generalized capacity for love, for compassion, for identification with others, who may superficially not look or talk or dress exactly like us, the ability to figure the world out that is focused and concentrated in our cerebral cortex.’

Note the “superficial” and “exactly”, implying that the similarities among different peoples far outweigh the differences; and the references to “reptilian ancestors” and “cerebral cortex”, as evidence of his commitment to a purely natural theology.

Speaking in 1985, the heyday of Reagan and the Star Wars, Sagan constantly returns to the nuclear threat and warns us that we have (still true, I gather) nuclear weapons capable of destroying our species many times over. And this is a scientist’s warning, so he duly backs it up with some morbid math on how many warheads it’d take to get to doomsday. Here he is championing the ethical legacy of such heavyweights as Spinoza, Einstein and Russell - not just in their espousal of laws of nature as the only plausible god, but also in their compassion and pacifism.

By itself, atheism is a negative and that very fact weakens its sales pitch. It’s no co-incidence that the word consists of a negating prefix followed by two harsh syllables; it is supposed to signify a rejection of something. What we want is something we can embrace, something positive. Sagan offers a recipe for that. Take what is best in religion: the deep questions it seeks to answer, the compassion it seeks to advocate, and the poetry it touches upon. Add what is best in science: the persistent chipping away at the wall of ignorance; the humility and awe of knowing that we live on a planet of a sun in the ‘boondocks’ of a galaxy (to use Sagan’s imaginative expression) that is itself a miniscule part of the universe. Cook this mixture in Sagan’s funny, lucid and lyrical prose, and what you get is a literary feast of a book.