Jeremy Bentham vs Edmund Burke on Robert McNamara: Can You Count Your Way to Right and Wrong
A behind the scenes look at why the felicific calculus and the Hamlet Evaluation System belong in the same conversation, and why Burke was the only fair fight for Bentham we could find.
Why This Topic
We came across Numbers Man, a piece by development economist Oliver Kim published in In Development Magazine profiling Robert McNamara, and the pattern jumped out immediately. Here was a Secretary of Defense who tried to score entire Vietnamese villages on a letter grade, tracked a war through something called the crossover point, and later took the exact same instinct to the World Bank and tried to score global poverty the same way. That is not a modern management story. That is a two hundred year old philosophical argument wearing a punch card operator’s badge.
The underlying question is simple to state and brutal to answer. Can a number ever substitute for judgment, or does the act of counting something always quietly change what counts as important? Jeremy Bentham spent his life arguing the first calculation possible for morality itself, and Edmund Burke spent his warning that abstract systems, however elegant, tend to break apart against a world too textured for any formula to hold. McNamara’s career is the closest thing history has offered to a live experiment testing both of them at once.
There is also a very live modern version of this same fight worth naming. The effective altruism movement has revived something close to Bentham’s original method, ranking charities and interventions by measurable outcomes per dollar spent. Critics of that movement have started calling the same failure mode by McNamara’s own name, the McNamara Fallacy, the belief that whatever resists a spreadsheet must not matter very much. The general who told a colonel he could not measure a Vietnamese farmer’s feelings, wrote it on his list in pencil, and then erased it, is not a closed historical case. He is still being argued about every time someone tries to rank the world’s suffering by a formula.
Why Jeremy Bentham
Bentham is the obvious founder of this entire way of thinking. His felicific calculus proposed scoring pleasure and pain across seven measurable dimensions, intensity, duration, certainty, proximity, fecundity, purity, and extent, and then simply adding up the total to find the right action. He famously argued that quantity of pleasure being equal, the simple game of pushpin was exactly as valuable as poetry, a line that still scandalizes people who assume culture must outrank arithmetic by default.
He is also, genuinely, an eccentric and a showman, which made him the obvious performer for this pairing. He invented words that are now ordinary English, including international and codification, he designed the Panopticon prison around the idea that visibility alone could discipline behavior more efficiently than force, and he arranged for his own body to be preserved and displayed at University College London after his death, an auto icon sitting in a cabinet to this day. A man that committed to being measured, catalogued, and put on permanent display is a man who was always going to defend McNamara’s instincts, even knowing exactly where they eventually led.
Why Edmund Burke
Burke needed no reinvention for this argument, since he already wrote the closing line for us. His 1790 Reflections on the Revolution in France warned that abstract rationalist schemes, however logically tidy, tend to shatter against the actual complexity of a society that took centuries to accumulate its habits and loyalties, a warning the Terror validated with brutal speed only a few years later. His phrase about an age of chivalry giving way to an age of sophisters, economists, and calculators reads today like it was aimed directly at a man born forty years after Burke died.
Burke’s concept of little platoons, the small local loyalties of family, neighborhood, and parish that root a person’s actual sense of right and wrong, is the precise opposite instrument to Bentham’s calculus. Where Bentham wants a method that scales to any population, Burke insists that the moment sympathy is asked to scale past what any one person can actually feel, something essential has already been lost, no matter how clean the resulting spreadsheet looks.
Who Else We Considered
John Stuart Mill against Bentham was tempting, since Mill broke from strict Benthamite utilitarianism by insisting some pleasures are qualitatively higher than others. We held this back deliberately, since it is a genuinely promising future pairing on whether quantification captures what matters, and deserves its own full episode rather than getting folded into McNamara’s story.
Adam Smith against Marx came up as an alternative angle on the World Bank material specifically, focused on structural adjustment and development economics rather than the philosophy of measurement itself. It is a strong debate, just a different one.
Immanuel Kant against Machiavelli was considered for the second half of McNamara’s story, the ethics of his private silence while publicly defending a war he privately doubted. We decided that question deserved its own dedicated episode rather than sharing space with the calculus debate.
Max Weber was discussed for his writing on bureaucratic rationalization, but was set aside for this particular pairing since his more natural opposite number, on the specific question of centralized administrative power, is being saved for the Tocqueville and Machiavelli arc running alongside this one.
Why Each Man Takes the Position He Does
Bentham defends the Hamlet Evaluation System and the crossover point because they are, structurally, his calculus wearing a military uniform. His entire philosophical project was built on the premise that nothing human is too large or strange to be reduced to countable units, and conceding that a war could not be measured would mean conceding his life’s central claim. This creates a real historical constraint on how far he can credibly retreat in the debate, since Bentham genuinely never disavowed quantification as a method, even while he was capable of enormous nuance about its application.
Where the script lets him concede ground, on field officers gaming the numbers, on land reform being starved of attention, on the moral cowardice of McNamara’s two years of public confidence after private doubt, those concessions are historically authentic. Bentham was a legal reformer obsessed with getting institutions to function honestly, and a rigged system offended his sense of correct procedure as much as it offended Burke’s sense of prudence.
Burke’s position requires almost no invention at all. His actual writing already supplies the exact vocabulary needed to describe McNamara’s failures, prescription against abstraction, little platoons against scale, and the sophisters and calculators line practically writes the finale itself. The one place the script asks Burke to bend is his single concession in Part 3, that naming poverty precisely enough to track it has genuine moral weight. This is authentic to Burke as well. He was never an enemy of measurement itself, only of measurement that mistook itself for the whole of wisdom, and a man who supported reform in Ireland and America throughout his career would recognize a well aimed number when he saw one.
A Note on the Sources
This entire arc traces back to Oliver Kim’s Numbers Man, which first laid out the throughline connecting McNamara’s Pentagon years to his World Bank presidency and gave us the Hamlet Evaluation System, the crossover point, and the Lansdale pencil anecdote that anchors this debate. Anyone who wants the full, unabridged account of McNamara’s career should start there.
Bentham’s felicific calculus and his views on natural rights as, in his words, nonsense upon stilts, come from his own writings on legislation and morals, alongside the well documented details of his Panopticon design and his instructions for his own preserved body. Burke’s material draws primarily from Reflections on the Revolution in France, including the sophisters, economists, and calculators line and his broader argument about prescription and inherited wisdom.
The McNamara material itself draws on his own later reflections about the war being unwinnable by 1965, the Hamlet Evaluation System and crossover point as documented features of the Vietnam era military bureaucracy, the Ellsberg papers revealing the gap between private and public assessments, and his Nairobi speech at the World Bank naming absolute poverty as a measurable target. Where the historical record is thin, particularly on exactly how much doubt McNamara privately expressed and to whom, we have stayed close to his own later public statements rather than speculating beyond them.
What Comes Next
All three parts of this debate are live now, and the companion arc running alongside it, Alexis de Tocqueville against Niccolo Machiavelli on the dangers of centralized administrative power, picks up the second half of McNamara’s story from a different angle entirely. If this pairing worked for you, Bentham against Mill on whether quantification can ever capture what matters most is next on our list.
Watch the full debate and subscribe for the rest of the series at PhilosophersTalk.com.