“A man may swear to tell the truth, but it is not in his power to tell the whole truth or nothing but the truth.”
The author of these words, the late 19th and early 20th century physicist and philosopher Pierre Duhem, is not as well known today as Werner Heisenberg, who formulated the Heisenberg Uncertainty principle, but in both his physics and his philosophical thought, Duhem anticipated Heisenberg. While I began my college studies as a physics major, I came to know the work of both men through my graduate studies in political theory, where I encountered the writings of the Catholic historian John Lukacs, and later the man himself.
John passed away three years ago this month at the age of 95. He was best known for his work on the Second World War, including profiles of Hitler and of Churchill and detailed histories of brief turning points in the war that will long remain standard works. I didn’t come to know him through those works, however, but through books that have never received the attention that they should have, and that are already becoming harder to find: The Passing of the Modern Age; Confessions of an Original Sinner, his first memoir (or more precisely, as he called it, “auto-history”); and his masterwork, Historical Consciousness: The Remembered Past, the third edition of which owes its publication to a phone call I made in 1992 to the father of modern American conservatism, Russell Kirk. In those days before the World Wide Web, I scoured countless used book stores but could not find a copy of the first or second edition to purchase. Dr. Kirk, whom I had met three years before and who would pass away just two years later, was the general editor of a line of conservative classics published by Transaction Press. Would he be interested in bringing out a new edition of a work that he, too, considered one of the most important of the 20th century? He would indeed, and the rest, as they say, is history (no pun intended).
But this paper is not about me, except in the sense that everything we write or say or do is inevitably bound to the writer or the speaker or the doer as much as it is to the subject of his writing or speaking or action. The distinction between subject and object, between mind and matter, between thought and extension that Descartes so firmly implanted in the philosophical presuppositions of Western man began to crumble in the last years of the 19th century, and has since been completely demolished through the work of Duhem and Heisenberg and Lukacs and Ortega y Gasset and, perhaps most importantly, Owen Barfield.
And yet the rubble of Cartesianism continues to clutter our minds and to keep us from being conscious at all times that we see the world not as an external observer but from the inside out. In the language of Barfield, an accomplished linguist and philosopher and close friend of C.S. Lewis and J.R.R. Tolkien, our knowledge is participatory. Heisenberg demonstrated that the act of our observation of a subatomic particle changes the state of that particle, but something similar happens every waking moment of our lives. The world in which we are participants is one that we constantly construct through the activity of our imagination.
This is not to say that everything which we perceive as external to us has no reality outside of our consciousness. In his greatest work, Saving the Appearances: A Study in Idolatry, Barfield referred to that reality as the “unrepresented.” Because our imagination is constantly engaged in actively transforming the unrepresented into meaningful representations without our conscious recognition of that activity, we perceive a world fully formed through our imaginative conception of it. In other words, we don’t consciously know the unrepresented except through those representations—representations that are the product of our mental activity, both personal and communal (through the medium of language). But that means that the represented—the world as we know it—is in every meaningful way something that each of us has helped bring into existence.
To put it in terms that could be taken from a child’s book of rhymes: A tree is a tree because of you and me. To the bird that builds a nest in its branches or the grubs that wriggle through its roots, the unrepresented reality that we conceive as a tree is something rather different. In a lecture on “Evolution” collected in his book History, Guilt and Habit, Barfield quotes from “Our ‘Polar Partnership’ with the World Around Us,” a 1977 Phi Beta Kappa oration at Harvard, in which Edwin H. Land, cofounder of the Polaroid Corporation, noted that
In many ways the tree certainly does not exist in the physical sense without the observer. The tree does not exist for radio waves of a certain wavelength, nor does it exist for neutrinos. The tree exists as part and parcel of the interaction between that part of the cosmos and our part of the cosmos, namely the “We” that has evolved over many centuries to be a partner with the tree.
Or to put it another way (again, quoting Land), “There really is no outside world and no inside world; there is just one world.” For each of us, the totality of our representation at any moment comprises that world.
I would expect, then, that when I go to sleep, the material world would continue to exist (as it obviously does), but my participation in it would change. And indeed, while we may not always realize we are dreaming while we are dreaming, we very quickly recognize that we were dreaming once we awake, because in our dreams, our imagination is not transforming the unrepresented into representations but transforming memories of representations into new representations and, in the process, often becoming unmoored from the reality of the unrepresented. In our dreams, we, like the neutrino, may be able to fly through a tree, because in our dreamscape both that tree and our body are representations of representations, and not of the unrepresented. But having flown through a tree in a dream, should we try to do so in our waking life, we are most likely to end up with a knot on our head.
If I haven’t yet caused you to wish that my delivery of this paper were a dream from which you could awake, you may be starting to formulate objections to this post-Cartesian understanding of reality. Chief among them, I suspect — because it was the objection with which I struggled for some time — is the thought that the philosophical arguments advanced by Barfield, Lukacs, Ortega, and Heisenberg represent a sort of relativism that threatens to shatter the very concept of truth. If, as I said a little while ago, for each of us the totality of our representation of the unrepresented at any moment comprises our world, wouldn’t that mean that each of us is living in at least a slightly different world?
Yes, and not just in the sense that my imaginative vision of this room and this gathering is different from yours because you’re sitting over there looking at me, and I’m sitting over here looking at you. Our imaginations are colored and shaped by our histories, both personal and communal. That Brooks has spent decades of his life with Barb means that he will understand the words that I am saying somewhat differently than he would have if he had remained a bachelor. That Amy has been married to me for 30 years means that she will understand these words somewhat differently from Barb, even though she and Barb are both hearing them tonight for the first time.
Man doesn’t have a nature, he has a history, John Lukacs often wrote; though to square those words with his Catholic faith and mine, I might say that man’s nature is his history. The difference between Adam’s nature before he took a bite out of the apple and his nature immediately afterward is the history of his (original) sin.
Even when we try to see the world through the eyes of others, we cannot set our history aside. Still, our shared language and our shared history together shape our personal imaginations in powerful ways, so that my representation and yours are close enough that we can easily fall back unthinkingly into believing that Descartes was right. In fact, were that not true, Cartesian dualism could never have taken the firm hold that it did for four centuries upon the Western mind.
As Catholics, John Lukacs and I understand that truth is not relative; all truth belongs to the Truth; and the Truth is a Person. But because the Truth is a Person, and we are people, too, our relation to the Truth (and thus to all truth) is personal. And precisely because we are not God, everything that is personal for us is, by definition, limited—at least until such time as, like John the Evangelist, we see “a new heaven and a new earth,” for “The former heaven and the former earth had passed away” (Rev 21:1).
And that brings us back to Pierre Duhem, and the quotation with which I began this paper. I set out to tell the truth, even though it is not in my power to tell the whole truth or nothing but the truth. And I firmly believe that this is the truth: In moving beyond the error of Descartes, in recognizing that the world in which we live is not wholly external to us but is one that each of us has helped bring into existence, and in humbly acknowledging that it is not in our power to tell the whole truth or nothing but the truth, we do not deny the reality of truth but prepare ourselves to enter into a more personal relationship with the truth—and ultimately with the Person Who is Truth Himself.
First delivered as a paper to the Cosmopolitan Club of Huntington County, Indiana, on May 24, 2022. The text has been slightly modified from the version delivered.