Left and Right: The Psychological Significance of a Political Distinction - critical summary review

Every few years, someone announces that left and right are dead. You've heard it at dinner tables, on podcasts, in campaign speeches. The old labels are tired, people say. They don't explain anything anymore. And yet, when the next election rolls around, you watch the whole country sort itself into two camps again, as if pulled by a magnet nobody can see.

Norberto Bobbio, an Italian philosopher who lived through Fascism and spent decades studying this question, found that paradox impossible to ignore. He published his study in Italy in 1994, just before a national election. It became a bestseller — which, by itself, suggested the distinction was alive and well. People who claim a question is meaningless don't usually buy a hundred thousand copies of a study about it.

His goal was unusual. He wasn't trying to prove one side right. He wanted to find the hard core of the divide, the thing that survives every rebranding, every new party, every collapse of an old ideology. And he landed on something strikingly simple: what separates left from right is how you answer one question about other human beings. Are the inequalities between us mostly made by society, or mostly made by nature?

That question is older than any party. It's also the reason the fight never ends.

The Premature Obituary of Left and Right

The arguments for burial are always the same three. First, the so-called crisis of ideology — the claim that the great doctrines that once fueled the contrast have evaporated, leaving two empty labels. Second, that modern democracies are too complex for a binary. Millions of voters, thousands of interest groups, a dozen parties — how could all of that fit on a single line?

Bobbio's answer to the complexity argument is quietly devastating. Look at the center. Every political landscape has one, and the center is not a third thing standing apart. It's what he calls an included middle: a position that only makes sense because there are two poles flanking it. A centrist tells you he is moderate between extremes. Remove the extremes and his identity vanishes. The supposed proof that the binary is obsolete turns out to depend on the binary completely.

He separates that from what he calls an inclusive middle — the "third way" that claims to absorb both sides and transcend them. These appear in moments of crisis and promise to end the old quarrel. They rarely do. And new movements cut across the line too. The Greens arrived as a transversal force, organized around ecology rather than class. Bobbio predicted they would soon grow their own internal left and right wings. They did.

Extremists and Moderates: A Different Axis

Here's a puzzle that seems to break everything. Nietzsche, a thinker of the right, gets adopted by radical leftists. Gramsci, a communist, gets quoted approvingly by the far right. If the labels were real, how could that happen?

Bobbio's answer is that we're looking at two different measuring sticks at once. Left and right measure values. Extremist and moderate measure methods. Take George Sorel, the theorist of revolutionary violence — he inspired both revolutionary syndicalists and counter-revolutionaries, not because he blurred left and right, but because he was an extremist, and extremism travels.

What extremists share is a posture toward democracy. They tend to dismiss it as mediocracy — rule by the mediocre, a machine for producing gray compromise. They share a catastrophic reading of history, where progress arrives through rupture and violence rather than gradual reform. And they prize what Bobbio calls warrior virtues over the commercial virtues of negotiation and mediation that democratic life actually runs on.

But methods are not values. A moderate right can ally with an extreme right, as Italy learned in the 1920s. A left extremist allying with a right extremist is something Bobbio calls a historical absurdity — their underlying ideals simply cannot be reconciled, no matter how similar their tactics look.

Why the Dyad Refuses to Die

Notice how effortlessly you use these words. You describe a party as center-left, a leader as hard right, a faction inside a party as its left wing. Nobody asks for a definition. The vocabulary works because it names something real.

Bobbio argues that the political world is antagonistic by nature. Politics is where groups with incompatible aims collide, and the most abstract form of that collision is the friend/enemy distinction — the basic sorting of who stands with us and who against. War is simply its extreme version. When a world is structured that way, a two-term language is not a simplification. It's an accurate map.

The spatial metaphor itself was an accident. During the French Revolution, deputies supporting the king happened to sit on the president's right, their opponents on the left. Pure seating arrangement. Other spatial metaphors exist — high and low, forward and backward — and none took hold the same way. The metaphor survived not because it was clever, but because the antagonism it named kept recurring.

And the terms carry two layers. The descriptive layer shifts with history. The evaluative layer flips depending on where you stand. For one person, equality is the highest aim; for another, it means levelling down, dragging the excellent toward the average. Same word, opposite charge.

False Trails: Religion, Tradition, Difference

If the distinction survives, what exactly is it measuring? Bobbio tests the main candidates and finds most of them leaking.

The political scientist J. A. Laponce proposed that politics runs on two spatial axes — a vertical one of higher and lower, and a horizontal one of left and right — and that the vertical, tied to religion and hierarchy, dominates. In that reading, the right belongs to the sacred and the left to atheism. Bobbio rejects it on the evidence. The right has had its militant believers and its pagan fascists. The left has had its liberation theologians preaching revolution from the pulpit in Latin America. Pinning faith to one side ignores half of both.

Then there's Dino Cofrancesco, who proposed tradition for the right and emancipation for the left. Bobbio finds the pair mismatched — the true opposite of tradition is innovation, not emancipation, so the terms don't actually face each other. Elisabetta Galeotti came closer with hierarchy against equality, though Bobbio suspects that choosing hierarchy rather than inequality was a way of sparing liberalism from being filed on the right.

Finally, the feminist argument that the discovery of difference has dissolved the old divide. Bobbio disagrees. Difference is real and compatible with both sides. The political question was never whether we differ. It's whether a given difference justifies treating someone worse.

The True Dividing Line

Strip away the false trails and one criterion keeps surviving: the attitude toward equality. The left leans egalitarian. The right accepts, defends, or celebrates inequality.

Bobbio immediately warns that equality is never absolute. Before the word means anything, you have to answer three questions he poses: Between whom? In what? On what basis? Equality among citizens in voting rights is one thing. Equality among workers in pay is another. The basis could be merit, need, rank, or effort — and each choice produces a different politics. Anyone who says "equality" without answering those three has said nothing yet.

He also draws a line between being egalitarian and being what he calls egalitarianist — the dogmatic dream of everyone equal in everything. The left, in his reading, is the first and not necessarily the second.

Underneath it all sits a judgment about human beings. The egalitarian believes what we share matters more than what separates us. The inegalitarian believes our diversity is the more valuable fact. That split shows up in where each side locates inequality's origin. Rousseau saw the great disparities as social constructions, which means they can be undone. Nietzsche saw them as natural, which means undoing them is both futile and a loss. Everything else follows from that fork.

Freedom Crosses the Line

One axis isn't enough. Bobbio adds a second: freedom against authoritarianism. And the reason is that equality and freedom, both ultimate goods, keep colliding.

His example is deliberately ordinary. Imagine a law requiring everyone to use public transport — an egalitarian measure, since it treats all travelers the same. It also removes your choice about how to get to work. Every expansion of the public sphere for the sake of equality tends to shrink the private sphere of choice. Bobbio notes a deeper asymmetry too: freedom is a personal good, since "I am free" makes sense on its own, while equality is a relationship, and "I am equal" means nothing until you finish the sentence.

Cross the two axes and you get four quadrants that actually explain the landscape. The extreme left is egalitarian and authoritarian — Jacobinism and Soviet communism. The Centre-Left is egalitarian and libertarian — social democracy and liberal socialism. The Centre-Right is inegalitarian and libertarian — the conservative parties of liberal democracies. The extreme right is inegalitarian and authoritarian — Fascism and Nazism.

This is why communists and social democrats, so different in method, can still find each other as allies. They share a pole star even when they disagree on everything else.

The Pole Star and the Planet of Castaways

That phrase is Bobbio's own. Equality, he writes, is the pole star of the left — the fixed point you steer by even when you never arrive. The clearest historical proof is the left's long quarrel with private property, seen for two centuries as the great obstacle to leveling the field.

He's honest about the wreckage. The grand attempt to realize that ideal produced, in his words, a utopia turned on its head. But the failure of one answer doesn't retire the question. Bobbio argues the question has simply moved address. It used to live inside national borders, in factory wages and school access. Now it lives between nations — the gap between the wealthy world and what he calls the planet of castaways, the populations left outside development entirely.

His own position he states personally, without disguise. He became a man of the left because of an uneasiness he felt growing up in Fascist Italy, watching enormous and unjustified inequalities treated as the natural order. Yet he refuses triumphalism. He cites the liberal economist Luigi Einaudi, who held that liberalism and socialism are both respectable currents, and that suppressing either would damage everyone. A good democrat, Bobbio insists, recognizes something worth preserving in the opposing ideal.

Final notes

What Bobbio leaves you with isn't a side to pick — it's a question you can't avoid answering. Every time you judge whether a gap between people is unjust or simply how things are, you place yourself on the map. The argument outlives every party that carries it. A society that stops arguing about equality hasn't matured past the fight; it has stopped being free.