
The US Constitution was influenced by the ideas of various philosophers. The philosophical foundations of the United States Constitution are rooted in natural rights, separation of powers, republicanism, and the social contract. The ideas of philosophers such as John Locke, Cicero, Aristotle, and Montesquieu, guided the Framers' vision for the new American republic. Locke's philosophies on natural rights, such as life, liberty, and property, significantly impacted the minds of the Framers. The concept of natural rights also influenced the Declaration of Independence, which, in turn, inspired the French Declaration of the Rights of Man and of the Citizen. Additionally, British common law contributed to procedural safeguards in the American legal system, such as the writ of habeas corpus and the principle of stare decisis. Mill's theories, though not directly influencing the Constitution, reflected the philosophy of the United States, emphasizing majority rule while protecting minority rights.
| Characteristics | Values |
|---|---|
| Natural rights | Life, liberty, and property |
| Separation of powers | Balance of executive and legislative power checked by an independent judiciary |
| Republicanism | Rule of law, government responsible to the governed |
| Social contract | Legitimate government power stems from the consent of the governed |
| Classical tradition | Emphasis on the common good and the responsibilities of citizens within a republic |
| Civic virtue | Commitment to the public good and collective well-being |
| Constitutionalism | Proper balance of government powers to guard against arbitrary and improper exercise of political power |
| Common law | Procedural safeguards, including the writ of habeas corpus and the principle of stare decisis |
| Utilitarianism | Majority rule with protection of minority rights, freedom of conscious and speech |
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What You'll Learn

John Locke's philosophies on natural rights
John Locke (1632–1704) is one of the most influential political philosophers of the modern period. His philosophies on natural rights significantly shaped the minds of the framers of the US Constitution. Locke's ideas were considered revolutionary for his time, especially his views on natural rights, social contract, and religious freedom.
Locke's philosophy centered on the belief that individuals are naturally endowed with certain innate, inalienable rights, including life, liberty, and property. These rights, according to Locke, are inherent and not granted by any government or external entity. He argued that people are naturally free and equal, contrary to the notion that God made people naturally subject to a monarch. This belief in natural rights and equality formed the basis for his social contract theory.
In his "Two Treatises of Government," Locke defended the claim that men are naturally free and equal. He asserted that legitimate political government arises from a social contract where individuals in the state of nature voluntarily transfer some of their rights to the government. This government exists by the consent of the governed and is responsible for protecting the rights of its citizens and promoting the common good. Locke's theory of natural rights and social contract provided a foundation for the principles of equality and religious freedom that became integral to the American political tradition.
Locke's ideas on religious freedom were particularly influential. He asserted that no just government could compel belief or worship, and that faith cannot be forced. This principle of toleration, along with his philosophy on natural rights, found expression in the Declaration of Independence, which states that "all men are created equal" and endowed with "certain inalienable Rights." The influence of Locke's ideas can also be seen in the US Constitution, which includes procedural safeguards and protections for individual liberties, reflecting the balance between individual rights and collective responsibility that Locke's philosophy emphasized.
The framers of the US Constitution were also influenced by other philosophical concepts, including republicanism, civic virtue, and the ideas of philosophers such as Cicero, who emphasized the importance of a political system based on the rights, responsibilities, and participation of citizens within a republic. Additionally, British common law contributed significantly to the American legal system, with principles like habeas corpus and stare decisis becoming integral parts of the US Constitution's framework.
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Classical traditions of the Roman Republic
The Founding Fathers of the United States drew upon two main intellectual traditions when designing the American system of government: Enlightenment philosophy and the Ancient (Classical) world of Greece and Rome. The ideas of philosophers from the Classical world, including those from the Roman Republic, were instrumental in shaping the US Constitution.
The Roman Republic (509-27 BC) served as a direct model of government for the writers of the US Constitution. The Greek historian Polybius, writing in the mid-2nd century BCE, described the Roman Republic as a "'mixed' form of government, comprising elements of monarchy, aristocracy, and democracy. In Polybius' view, this mixture allowed the Roman Republic to leverage the strengths of each system to compensate for the weaknesses of the others. This "mixed" form of government, Polybius argued, provided the Romans with a high level of domestic tranquility, which enabled their conquest of the Mediterranean. The writings of Polybius, describing the Roman Republic's system of consuls, senate, and people's assemblies, influenced the Founders' design of a government that could check itself.
The concept of republicanism, rooted in Roman tradition, presented a model of divided authority among different branches of government to prevent tyranny. This idea of a "'mixed'" or "'balanced'" government was reflected in the US Constitution's establishment of an independent president, an aristocratic Senate, and a popular House of Representatives. The principle of checks and balances, integral to the US Constitution, also has antecedents in the classical world.
The Founding Fathers were captivated by the ideals and political structures of ancient Rome, and their engagement with classical texts molded the philosophical foundations of the American Republic. Classical traditions of civic virtue and civic humanism, stressing the moral character of the independent citizen, also informed the Founders' thinking. The Roman statesman Cicero's writings on law and governance, championing the idea of natural law underpinning societal laws and government actions, heavily influenced the Declaration of Independence and the Constitution. Cicero, in turn, was influenced by Polybius' writings on the Roman Republic.
In conclusion, the classical traditions of the Roman Republic played a significant role in shaping the philosophical and ideological foundations of the US Constitution. The Founding Fathers drew upon the Roman model of government, the concept of republicanism, and the ideas of Roman thinkers such as Polybius and Cicero, to craft a Constitution that embodied the enduring values and wisdom of antiquity.
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The social contract
The idea of the social contract had a significant influence on the American Founding Fathers, particularly Thomas Jefferson and James Madison. The US Constitution begins with the words "We the people", reflecting the idea of popular sovereignty. The social contract theory holds that a government established by the free choice of its people is required to serve those people, who ultimately have the power to overthrow that government if it breaks the terms of the contract.
Locke's ideas on the social contract were particularly influential in shaping the US Constitution. He attempted to assure individuals' natural rights by assigning separate powers to the monarch and Parliament and by reserving the right of revolution against an oppressive government. Locke's theories of natural rights and the social contract were also used by abolitionists to support their cause.
In conclusion, the social contract theory, particularly the ideas of Hobbes and Locke, played a significant role in shaping the philosophical foundations of the US Constitution. The concept of popular sovereignty and the belief that government derives its power from the consent of the governed are key principles reflected in the US Constitution and the American political system.
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British common law
Although the United States is not part of the British Commonwealth, many American customs and practices can be traced back to England. The US legal system, for instance, is modelled on the British legal system. The fundamental principles of injury law, or "Tort Law", are inherited directly from English common law.
English common law is a legal system that gives great weight to judicial precedent and the style of reasoning inherited from the English legal system. It is "the body of law derived from judicial decisions, rather than from statutes or constitutions".
The adversarial system of justice, another legacy of British common law, became the foundation of the American legal process. This system, based on the belief that truth and justice are best determined through a structured confrontation between opposing parties, shaped the procedures of the US legal system. American jury trials are also fashioned after British jury trials. While the names of certain roles may differ, US and UK jury trials share several key elements, such as a presiding judge, prosecutor, defence counsel, witnesses, and a court stenographer.
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Republicanism
Cicero believed in the importance of a political system in which the rights, responsibilities, and participation of the citizenry formed the bedrock of governance. His view posited that a republic could only thrive if its citizens were virtuous and committed to the public good. This belief in civic virtue was predicated on the idea that individuals within the republic should be willing to put aside their personal interests and work towards the collective well-being.
The founding fathers of the United States combined ideas of republicanism and liberalism to establish a constitutional government. They were influenced by the optimism of the European Enlightenment and the works of John Locke, whose theories on natural rights and the social contract significantly shaped their thinking. Locke's philosophy held that legitimate government power stems from the consent of the governed.
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Frequently asked questions
The philosophical foundations of the US Constitution are rooted in the ideas of natural rights, separation of powers, republicanism, and the social contract.
John Locke's philosophies on natural rights significantly influenced the US Constitution. Locke believed in innate, inalienable rights that individuals possess simply by being human: life, liberty, and property.
Locke's vision of the social contract held that legitimate government power stems from the consent of the governed. This idea is reflected in the US Constitution, which aims to balance individual liberties with collective responsibility.
Yes, in addition to Locke, the Framers of the Constitution were influenced by the principles of republicanism and civic virtue espoused by the classical traditions of the Roman Republic and the philosophical works of Cicero. British common law, including the principle of stare decisis and the adversarial system of justice, also contributed significantly to the procedural safeguards in the US legal system.

























