Or, “The Mind-Body Problem? No Problem”
The great French mathematician and philosopher, René Descartes (1596 – 1650), concluded that he could know for certain that he existed, because he was thinking: “I think, therefore I am” (Cogito, ergo sum in the original Latin).
Here’s the joke:
A horse walks into a bar and orders a beer. The bartender says, “You’re in here every day. You might be an alcoholic.” The horse says, “I don’t think I am,” and disappears. It’s a joke about Descartes, but you don’t want to put him before the horse.
Of course, if the horse doesn’t think he is [an alcoholic], he is still thinking . . . but that spoils the “horse before the cart” / “Descartes before the horse” joke.*
Here is Richard Watson, in his fascinating Cogito Ergo Sum: The Life of René Descartes (2002):
According to Descartes, each human being consists of a mental, thinking, active, unextended soul-mind united with a material, unthinking, passive, extended body. Most people in the Western world believe that this is true, that we have bodies and we have souls. . . .
In the twenty-first century, this is how the last battle for the human soul will go. Materialists will discover more and more about how the brain works. Mentalists will never be able to show how an independent mind works. One day, one hundred, two hundred years down the line, everyone will finally realize that the materialists have won and that the mentalists have lost this last battle for the human soul. When humankind finally faces the fact that the mind is the brain, that there is no independently existing mental soul to survive the death of the body, that none of us chirpy sparrows is immortal, when Descartes’ ghost in the machine finally fades away and his animal machine is triumphant, then there will be a revolution in human thought the like of which none has gone before.
[pp. 313, 327]
What follows from this? I have a body; you have a body; the dog, cat, and cockroach all have bodies; the trees have bodies; soil consists of a multitude of bodies; even stones have bodies. Each of these bodies functions in ways that are more similar (mammals, for example) or less similar to ours. Humans have language. Dogs hear pitches where we hear only silence. Trees, we have learned in recent years, communicate with each other through mitochondria. What we share in common is . . . we are bodies. Atoms and molecules. We come from atoms and molecules, and we return to atoms and molecules. We are quite literally one with every other body, with the earth itself, with the universe. Stardust. “The smallest sprout shows there is really no death,” wrote Walt Whitman, “And if ever there was, it led forward life, and does not wait at the end to arrest it, / And ceas’d the moment life appear’d. / All goes onward and outward—nothing collapses; / And to die is different from what any one supposed, and luckier.” What if we lived, every day, that sense of solidarity with all bodies, respect for all bodies?
This idea of a body, applied to all of nature, makes us “one with everything,” to use the Buddhist phrase, but in a different, more concrete sense. Clouds, rocks, dogs, trees, Descartes, all are bodies made of the same materials, materials that recycle among all the different kinds of bodies that exist. Or, as John Lennon put it, “I am he as you are he, as you are me and we are all together.” We just need to add an “it” to those pronouns. And what binds these bodies together, or keeps them separate? Energy. The intuitions of visionaries like Laozi—
The universe is deathless; Is deathless because, having no finite self, it stays infinite. A sound man by not advancing himself stays the further ahead of himself, By not confining himself to himself sustains himself outside himself: By never being an end in himself he endlessly becomes himself.
Epicurus—
Death, therefore, the most awful of evils, is nothing to us, seeing that, when we are, death is not come, and, when death is come, we are not.
William Blake—
Without contraries there is no progression. Attraction and repulsion, reason and energy, love and hate are necessary to human existence. . . . Energy is an eternal delight . . . .
and Whitman are being confirmed in our time by modern physics.
The old joke turns out to be truer than expected: it is wrong to put Descartes before the horse, if he and the horse are brothers. Sometimes the horse leads; sometimes Descartes leads; sometimes they go separate ways. But they are both bodies, and both deserve respect.
Corollary
Here is one of those “Why is the sky blue?” questions that I have pondered for a few years: Why is almost everything in the natural world beautiful? Is there some evolutionary advantage to being beautiful? If so, it certainly has not stopped humans from despoiling Nature in every way imaginable. No. It seems to me, rather, that we find Nature beautiful because the entire universe consists of bodies made of the same material, material that combines to build structures on the same universal principles. What do we see in microscopes, in telescopes, underwater, in forests, deserts, and savannahs? The same shapes, the same branchings and symmetries and fractal iterations. We see, in other words, ourselves. That aesthetic response—”Oh, look, how beautiful!”—is recognition. We see our body.


*Bonus chuckle, this one from Richard Watson in the same book:
One day Morris Raphael Cohen, a legendary professor at City College New York, gave a lecture on Descartes’ method of doubt in which he left uncertain the question of the existence of everything. The next morning when Professor Cohen arrived at his office, he found waiting for him a young man who was obviously in great distress. Professor Cohen opened his door and ushered the student inside. “Tell me, Professor Cohen, the student blurted out at once, “I’ve been worrying all night. Tell me, do I exist?” Professor Cohen fixed him with a steely eye and in his eminently imitable Yiddish accent said, “Zo who vants to know?”