Politics

Monarchy

Is government by one man the best or the worst form of rule, and can monarchical power be reconciled with liberty?

Ancient Greek
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Patristic/Medieval
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Renaissance/Early Modern
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Enlightenment
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19th Century
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finis

The Reading List

Follow this thread through the primary texts, in the order they enter the conversation.

1. Plato, , 291c-303d; , Books III-IV
2. Aristotle, , Books III, V
3. Aquinas, , Book I; , I-II, Q. 105
4. Machiavelli,
5. Hobbes, , Part II, Chapters 17-19
6. Locke, , Chapters VII-IX
7. Montesquieu, , Books II-III, V, XI
8. Rousseau, , Book III, Chapters 1-6
9. Hegel, , Part III, "The State"
Read as text

Every thinker on Monarchy, in chronological order.

Plato

428–348 BC · Ancient Greek

The philosopher-king rules by wisdom, not by law; monarchy is the best regime when the ruler truly knows.

Plato makes the strongest case for monarchy ever advanced in Western philosophy. In the , the Eleatic Stranger argues that the art of politics is a form of knowledge, like medicine or navigation, and that the person who possesses this knowledge has the right to rule regardless of whether his subjects consent or resist. The true statesman is the royal weaver who harmonizes the different threads of civic life into a single, well-ordered fabric. Law, in this picture, is a blunt instrument: useful when no genuine knower is at hand, but always inferior to the living judgment of wisdom.

The classifies regimes by number of rulers and by lawfulness, yielding six forms. Among the lawful ones, monarchy is best, aristocracy second, democracy third; among the lawless ones, the ranking reverses, making tyranny the worst. The logic is simple. One wise ruler, unconstrained by the rigidity of written statutes, can respond to circumstances with precision. But one ignorant or vicious ruler, equally unconstrained, can do more damage than any mob.

In the , Plato softens this position. The aged Athenian Stranger proposes a mixed regime for the colony of Magnesia, combining monarchical authority with popular consent and the rule of law. He has come to doubt that a living philosopher-king will ever appear, so law must serve as the second-best pilot. Yet the 's argument remains the deeper one: if perfect knowledge were available, rule by one would be rule by the best.

"The king's allegiance is to knowledge and nothing else; he rules because he knows, whether his subjects like it or not."

*Statesman*, 293a-c

"No law or ordinance has the right to sovereignty over true knowledge."

*Statesman*, 297a

Plato bequeaths to the tradition a permanent tension. Monarchy is theoretically the best regime precisely because unified knowledge is superior to codified rules, yet the practical absence of such knowledge makes monarchy the most perilous gamble in politics.

Key work: Statesman

Aristotle

384–322 BC · Ancient Greek

Kingship is the best regime in principle, but it presupposes a man of superhuman virtue who rarely exists.

Aristotle treats monarchy with a combination of theoretical respect and practical caution. In Book III, he distinguishes five types of kingship: the Spartan generalship, the barbarian hereditary despotism, the elected dictatorship (aisymneteia), the heroic kingship of the mythic age, and absolute kingship (pambasileia), where one man rules over everything as a household head rules his family. Only the last raises the full philosophical question: should such a man, if he exists, be given unlimited power?

Aristotle's answer is conditional. If there is a man so surpassingly excellent in virtue that no law can measure him, then it would be absurd to subject him to the rotation of office or the rule of the majority. "Such a man would be like a god among men," and the just course would be to obey him willingly. But Aristotle immediately notes how rare such excellence is. For most cities at most times, the collective judgment of the many, governed by constitutional law, is a safer bet than the virtue of any single person.

The practical analysis in Book V deepens the worry. Monarchies corrupt in predictable ways: the king who seeks his own interest rather than the common good becomes a tyrant. Hereditary succession compounds the risk, since there is no guarantee that virtue passes from father to son. Aristotle recommends institutional safeguards, limited prerogatives, and mixed constitutions as insurance against this decay.

"He who would have law rule is asking God and intelligence alone to rule, while he who would have a man rule adds the beast as well."

*Politics*, III.16 (1287a28)

"If there be some one person so greatly distinguished in excellence that the excellence of all the others is not to be compared with his, such a person should be as a god among men."

*Politics*, III.13 (1284a3)

Aristotle's conditional endorsement of absolute kingship creates a persistent difficulty: the argument that justifies giving one supremely virtuous man unlimited power provides no mechanism for identifying him in advance or for removing him if he turns out to be ordinary. Aquinas will add a theological anchor; Hobbes will replace virtue with fear as the basis of sovereignty; but neither will quite solve the problem Aristotle himself flags — that the condition for legitimate monarchy is precisely the condition that is never met.

Key work: Politics

Responds to: Plato

Thomas Aquinas

1225–1274 · Patristic/Medieval

Monarchy is the best form of government because unity of rule mirrors the unity of divine governance over creation.

Aquinas offers the most systematic medieval defense of monarchy. In De Regno (On Kingship), he argues from analogy: every multitude is best directed by one, as the body is ruled by the heart, the soul by reason, and the universe by God. A ship with two captains will founder; a kingdom with divided authority will tear itself apart. The good of the community is peace and unity, and one ruler secures these more effectively than many.

But Aquinas is no apologist for tyranny. He is careful to distinguish the king, who rules for the common good according to law, from the tyrant, who rules for himself. Tyranny is in fact the worst corruption of government, worse than oligarchy or mob rule, precisely because monarchy concentrates the most power. Aquinas concedes that the stronger the medicine, the more dangerous the overdose. For this reason, he counsels that the king's power should be "tempered" so that he cannot easily become a tyrant.

In the , Aquinas endorses a mixed constitution, combining monarchy with aristocratic and democratic elements, as the best practical arrangement. He cites the Mosaic polity as a precedent: Moses and his successors ruled as princes, the seventy elders served as an aristocratic council, and the people chose their own officers. This blending preserves the unity of command while distributing power widely enough to prevent abuse.

"The best form of government in any city or kingdom is one in which one man is placed over all to rule by virtue, and under him are others governing by virtue."

*Summa Theologica*, I-II, Q. 105, a. 1

"If the government should become unjust, it is tyrannical, and tyranny is the worst corruption because it is the corruption of the best."

*On Kingship*, I.3

Aquinas's account leaves the sharpest question to his successors: if the king's authority derives from God and natural law, who enforces those limits on earth? Aquinas counsels endurance and prayer against a tyrant, or intervention by a higher authority, but offers no institutional mechanism. Hobbes will argue that this gap is fatal — that any limit on sovereignty reintroduces the very conflict sovereignty was meant to prevent — and Locke will answer by granting the people themselves the right of last resort.

Key work: On Kingship

Responds to: Plato, Aristotle

Niccolò Machiavelli

1469–1527 · Renaissance/Early Modern

The prince must master both law and force, learning when to be lion and when to be fox.

Machiavelli shatters the classical framework by refusing to ask what monarchy ought to be and asking instead what it actually requires. is addressed to a new ruler, Lorenzo de' Medici, and its advice is brutally practical. A prince must study how to maintain his state, and this means learning to act against mercy, against faith, against humanity, against religion when necessity demands it. The traditional virtues are not rejected; they are made conditional on circumstance.

The famous image of the lion and the fox captures the logic. Laws alone are not enough, because men do not keep faith; the prince must therefore also know how to use force (the lion) and how to use cunning (the fox). Fortune governs roughly half of human affairs, and the prince who relies only on inherited customs or moral scruple will be overwhelmed when circumstances shift. What matters is virtù, the energy, boldness, and adaptability that allow a ruler to seize and hold power.

Machiavelli's prince is neither a Platonic philosopher-king nor an Aristotelian statesman ruling for the common good. He is a technician of power. Yet Machiavelli is not indifferent to outcomes: he insists that a prince who wants to keep his state must learn to appear merciful, faithful, humane, upright, and religious while being ready to act otherwise. The people prefer good treatment, and a wise prince satisfies them; he is cruel only when cruelty serves stability.

"Everyone sees what you appear to be, few experience what you really are."

*The Prince*, XVIII

"A prince, especially a new one, cannot observe all those things for which men are esteemed, being often forced, in order to maintain the state, to act contrary to fidelity, friendship, humanity, and religion."

*The Prince*, XVIII

Machiavelli redefines monarchy as a problem of survival and technique rather than justice or divine mandate. His influence is enormous. Hobbes inherits his realism about human nature, Enlightenment critics cite him as proof that princes cannot be trusted, and every subsequent theorist of power writes in his shadow.

Key work: The Prince

Responds to: Aristotle, Thomas Aquinas

Thomas Hobbes

1588–1679 · Renaissance/Early Modern

Sovereignty must be absolute and undivided; monarchy is the best form because one will suffers fewer divisions than many.

Hobbes constructs the most rigorous modern argument for monarchy from the problem of civil war. In the state of nature, without a common power to keep them in awe, men live in a condition of war "of every man against every man." To escape this misery, they covenant together to authorize one man or assembly to act on their behalf. This sovereign, once constituted, holds absolute and indivisible power; any limitation on sovereignty reintroduces the conflict it was created to prevent.

Having established the necessity of absolute sovereignty in any form, Hobbes argues in Chapter 19 that monarchy is the best instantiation. His reasons are characteristically unsentimental. In a monarchy, the private interest of the sovereign and the public interest coincide more closely than in an assembly, because the king's wealth and security depend on the wealth and security of his subjects. Assemblies suffer from faction, inconsistency, and the distortions of rhetoric; a single ruler deliberates in private, free from the contagion of passionate oratory.

Hobbes also addresses the chief objection: that monarchy places too much power in one fallible person. He replies that every sovereign, whether one man or an assembly, can err and oppress, but the damage from a monarch's favoritism is less than the damage from factional warfare in a republic. The inconveniences of monarchy, he insists, "proceed not from monarchy but from the ambition and injustice of subjects." The real danger is always division of power, not its concentration.

"The condition of man... is a condition of war of every one against every one."

*Leviathan*, I.13

"The difference between these three kinds of commonwealth consisteth not in the difference of power, but in the difference of convenience."

*Leviathan*, II.19

Hobbes provides monarchy with its strongest modern philosophical foundation. By grounding sovereignty in the logic of self-preservation rather than divine right or natural hierarchy, he makes the case for absolute rule in terms that even secular, mechanistic thinkers must take seriously. Locke and Rousseau both define their positions against him.

Key work: Leviathan

Responds to: Aristotle, Niccolò Machiavelli

John Locke

1632–1704 · Renaissance/Early Modern

Absolute monarchy is inconsistent with civil society and can be no form of civil government at all.

Locke mounts the most influential liberal attack on absolute monarchy. His argument begins where Hobbes does, in the state of nature, but reaches the opposite conclusion. In nature, all persons are free and equal, possessing rights to life, liberty, and property. They form political society by consent in order to secure these rights through impartial law and a known judge. The whole point of leaving the state of nature is to escape a condition in which each person is judge in his own case.

Absolute monarchy fails this test entirely. An absolute monarch, who holds all legislative and executive power and stands above the law, remains in the state of nature with respect to his subjects. He is judge in his own case whenever a dispute arises between himself and any subject. Far from remedying the defect of the natural condition, absolute monarchy preserves it in its worst form. "To think that men are so foolish that they take care to avoid what mischiefs may be done them by polecats or foxes, but are content, nay think it safety, to be devoured by lions."

Locke does not reject all monarchy. A limited, constitutional monarch who governs under law and whose prerogative is checked by a legislative body drawn from the people can be a legitimate ruler. What he rejects is the Hobbesian thesis that sovereignty must be absolute. For Locke, the community always retains a residual sovereignty: if the monarch violates the trust under which he governs, the people have a right to resist and replace him.

"Absolute monarchy, which by some men is counted the only government in the world, is indeed inconsistent with civil society, and so can be no form of civil government at all."

*Second Treatise*, §90

"Wherever law ends, tyranny begins."

*Second Treatise*, §202

Locke transforms the debate over monarchy from a question about the best form of rule into a question about the limits of any rule. His argument that political authority exists only to protect rights, and that absolute power negates the very purpose of government, becomes the philosophical backbone of modern constitutionalism.

Key work: Second Treatise of Civil Government

Responds to: Thomas Hobbes

Montesquieu

1689–1755 · Enlightenment

Monarchy is government by one person according to fixed and established laws, sustained by the principle of honor.

Montesquieu's great contribution is to distinguish monarchy sharply from despotism. In , he classifies governments into three types: republics (democratic or aristocratic), monarchies, and despotisms. Each has its own nature (structure) and its own principle (the passion that makes it function). Monarchy's nature is rule by one person according to fixed, established laws, mediated by "intermediate bodies," especially the hereditary nobility, the parlements, and the clergy. Its animating principle is honor: the ambition of each rank to maintain its privileges and distinction.

This framework allows Montesquieu to defend limited monarchy while condemning absolutism. A monarch who governs through established laws and respects the prerogatives of intermediate institutions differs in kind, not merely in degree, from a despot who rules by fear and caprice. When a monarch destroys the nobility, suppresses the parlements, and concentrates all power in his own person, the monarchy ceases to be a monarchy and becomes a despotism. Montesquieu had the late reign of Louis XIV clearly in view.

The doctrine of the separation of powers in Book XI extends this logic. Liberty is secure only when legislative, executive, and judicial powers are lodged in different hands. Montesquieu admires the English constitution precisely because it distributes these functions, preventing any single authority from accumulating unchecked control. A king may hold executive power, but he must share legislative authority with a representative body and leave judicial decisions to independent courts.

"When the legislative and executive powers are united in the same person, or in the same body of magistrates, there can be no liberty."

*The Spirit of the Laws*, XI.6

"Monarchy is destroyed when the prince, referring everything to himself, calls the state to his capital, the capital to his court, and the court to his own person."

*The Spirit of the Laws*, VIII.6

Montesquieu grounds monarchy's legitimacy in institutional structure rather than the ruler's virtue, but this creates a question Rousseau will press: if honor, the ambition of rank, is what makes monarchy function, then monarchy rests on a socially cultivated passion for inequality — and a theorist who takes popular sovereignty seriously cannot accept that foundation. The tension between institutional design and moral legitimacy is the fault line Montesquieu opens for the next generation.

Key work: The Spirit of the Laws

Responds to: Thomas Hobbes, John Locke

Jean-Jacques Rousseau

1712–1778 · Enlightenment

Monarchy concentrates executive power effectively, but its natural tendency is to degenerate into despotism.

Rousseau approaches monarchy from within his theory of the general will. Sovereignty, which belongs inalienably to the people, must be distinguished from government, which is merely the executive body charged with applying the general will to particular cases. The form of government, whether monarchical, aristocratic, or democratic, is therefore always subordinate to the sovereign people. A king is not a sovereign; he is a magistrate, an agent, a servant.

Within this framework, Rousseau grants monarchy certain advantages. A single executive acts with the greatest vigor and speed; decisions are unified, and the state moves with one will rather than the fractured deliberation of an assembly. For large states, where executive energy matters more than direct participation, monarchy may be the most practical form of government. Rousseau also concedes that monarchies attract able ministers, since a single ruler can appoint talent, whereas republican assemblies often promote mediocrities through election.

But the concessions end there. Monarchy's great defect is that the private will of the prince perpetually works against the general will. Every king wants to be absolute, and the court that surrounds him works to increase his power at the expense of the people. Hereditary succession compounds the problem: "The best kings want to be able to be wicked if they please, without ceasing to be masters." The history of monarchies, Rousseau observes, is a history of weak or wicked reigns interrupted only briefly by capable rulers.

"In monarchical government, the prince is the minister of the law, not its master."

*The Social Contract*, III.1

"The best kings want to be able to be wicked if they please, without ceasing to be masters."

*The Social Contract*, III.6

Rousseau turns the monarchical tradition on its head. By insisting that sovereignty always resides in the people, he makes monarchy a revocable administrative arrangement rather than a divinely ordained or naturally superior regime. His arguments feed directly into the revolutionary movements that will sweep away the old European monarchies.

Key work: The Social Contract

Responds to: Thomas Hobbes, Montesquieu

G.W.F. Hegel

1770–1831 · 19th Century

Constitutional monarchy is the rational form of the modern state, where the monarch embodies the unity of sovereign decision.

Hegel attempts to rescue monarchy from both its absolutist defenders and its liberal critics by reconceiving it as a moment within the rational constitution of the modern state. In the , the state is the actualization of ethical life (Sittlichkeit), and its constitution must express the rational articulation of universal, particular, and individual will. The legislature represents the universal (law-making), the executive represents the particular (administration), and the monarch represents the individual (the moment of sovereign decision).

The monarch's role is not to govern in the Hobbesian sense of absolute command. Rather, the constitutional monarch is the point at which the state achieves subjective individuality: someone must say "I will" and put the dot on the i. Hegel compares the monarch to the final moment of a syllogism that completes the logical structure. In a well-ordered constitutional monarchy, the content of decisions is determined by laws, ministers, and advisors; the monarch adds only the formal moment of personal resolve. This is why, Hegel famously argues, the particular character of the monarch matters little in a mature constitution.

Hegel opposes both popular sovereignty in Rousseau's sense and the contractual theory of the state. The state is not created by agreement among pre-existing individuals; it is the ethical substance that makes individuality possible. Hereditary succession is therefore rational, not because blood carries virtue, but because it removes the monarch from the contingency of election and faction. The king is born, not chosen, so that sovereignty rests on something beyond the play of particular interests.

"The monarch is the absolute self-determination of the will, the moment of individual decision; it is the 'I will' that places the dot on the i."

*Philosophy of Right*, §275

"In a well-organized monarchy, the objective aspect belongs to law alone, and the monarch's part is merely to set to the law the subjective 'I will.'"

*Philosophy of Right*, §280

Hegel closes the great conversation on monarchy by folding it into a theory of the rational state. His constitutional monarch is neither Plato's philosopher-king nor Hobbes's absolute sovereign but a formal principle of decision embedded within an institutional order. This vision influenced nineteenth-century European constitutionalism and remains the most philosophically ambitious attempt to reconcile monarchical authority with modern freedom.

Key work: Philosophy of Right

Responds to: Montesquieu, Jean-Jacques Rousseau

The Reading List

1. Plato, , 291c-303d; , Books III-IV
2. Aristotle, , Books III, V
3. Aquinas, , Book I; , I-II, Q. 105
4. Machiavelli,
5. Hobbes, , Part II, Chapters 17-19
6. Locke, , Chapters VII-IX
7. Montesquieu, , Books II-III, V, XI
8. Rousseau, , Book III, Chapters 1-6
9. Hegel, , Part III, "The State"