Understanding Human Rights: Core Concepts and Theories

Human rights are among the most powerful ideas in modern history. They shape constitutions, drive social movements, and set the baseline for how governments must treat people. But what exactly are human rights? Where does the idea come from, and what philosophical traditions support it? This post breaks down the core concepts and theories behind human rights – from their universal definition to the philosophical debates that continue to shape them.

What are human rights? 🔗

At the most basic level, human rights are the rights you hold simply because you are a human being. They are not earned, granted by a government, or tied to your nationality, gender, religion, or social status. They belong to every person, everywhere, at all times.

The United Nations defines human rights as fundamental freedoms and entitlements to be universally protected. These rights cover a wide spectrum – from the right to life, liberty, and security, to the right to education, work, and participation in cultural life. They are considered universal (they apply to everyone), inalienable (they cannot be taken away), and interdependent (the fulfilment of one right often depends on others).

The formal international recognition of human rights took a decisive step forward after the devastation of World War II. The newly formed United Nations adopted the Universal Declaration of Human Rights (UDHR) on 10 December 1948 in Paris, with 48 nations voting in favour and none against. Amnesty International describes the UDHR as a global roadmap for freedom and equality, created in direct response to the atrocities of the war. The declaration contains 30 articles outlining the basic rights and freedoms of all individuals, and it has since been translated into over 500 languages.

The drafting committee included representatives from diverse legal and cultural backgrounds. According to the UN, world leaders wanted to complement the UN Charter with a framework that would guarantee the rights of every person everywhere, ensuring that the horrors of the war would never be repeated. Eleanor Roosevelt chaired the commission, and delegates like René Cassin, P.C. Chang, and Charles Malik played central roles in shaping the document.

Two meanings of rights 🔗

Before diving into theories, it helps to understand that the word “rights” carries two distinct meanings in moral and political philosophy.

Being right 🔗

The first meaning relates to acting righteously – behaving in accordance with moral codes, duties, or ethical standards. When we say someone did “the right thing,” we are evaluating their behaviour against a shared moral framework. This sense of “right” is about conduct and character.

Having a right 🔗

The second meaning is about entitlement. When we say a person “has a right” to education or free speech, we mean they are entitled to that benefit, and others – including the state – have an obligation to respect or provide it. This is the meaning that forms the foundation of human rights as we understand them today.

Human rights, in this sense, are entitlements that protect individuals from injustice and create conditions for personal and social growth. They are not privileges to be awarded; they are guarantees that every person can claim by virtue of being human. This distinction between moral conduct and moral entitlement is crucial because it shifts the focus from what people should do to what people inherently deserve.

Natural law theory 🔗

Natural law theory is one of the oldest and most influential philosophical foundations for human rights. It rests on the belief that certain moral principles are inherent in nature and can be discovered through reason – independent of any laws made by governments.

Roots in ancient philosophy 🔗

The idea traces back to ancient Greece. Aristotle argued that certain principles of justice are universal and exist independently of human-made laws. He distinguished between natural justice, which applies everywhere, and conventional justice, which varies from one society to another. For Aristotle, human beings are naturally inclined toward moral virtue, and reason is the tool through which they can discern what is just.

The Roman statesman Cicero further developed these ideas, arguing that true law is right reason in agreement with nature. He believed this law is universal, unchanging, and binding on all peoples and all times – a powerful early articulation of what we now call universal human rights.

Aquinas and divine law 🔗

In the 13th century, St. Thomas Aquinas brought natural law theory into the Christian theological framework. He argued that natural law is a participation in God’s eternal law, accessible to human beings through their rational faculties. According to Aquinas, because human beings possess reason – which he considered a reflection of the divine – all human lives are sacred, all people are fundamentally equal, and everyone possesses an intrinsic set of rights that no one can remove.

Aquinas held that human-made laws must conform to natural law to be valid. An unjust law – one that contradicts natural moral principles – lacks true moral authority. This idea had an enormous influence on later legal systems and on the very concept of universal human rights.

Locke and natural rights 🔗

During the Enlightenment, John Locke reshaped natural law theory with a focus on individual rights. In his Two Treatises of Government, Locke argued that individuals possess inherent rights to life, liberty, and property, and that the primary purpose of government is to protect these rights. If a government fails to do so, Locke believed the people are justified in replacing it.

Locke’s contributions shifted the emphasis from duties owed to God or the community toward the rights held by the individual. This reframing profoundly influenced modern constitutionalism, the American Declaration of Independence, and the broader development of human rights law.

Key features of natural law theory 🔗

Natural law theory, across its various forms, shares several core features. It holds that moral principles are universal – they apply to all people regardless of culture or geography. These principles are discoverable through reason, not dependent on religious revelation alone. And they exist independently of positive (legislated) law – meaning a government’s law can be unjust if it violates natural law. This framework provides a powerful philosophical basis for claiming that human rights are not invented by societies but are rooted in the very nature of humanity.

Social utility theory 🔗

While natural law theory grounds human rights in inherent moral principles, social utility theory takes a different approach. It evaluates rights based on their consequences – specifically, their ability to promote happiness and well-being in society.

The utilitarian foundation 🔗

Social utility theory is closely linked to utilitarianism, the moral philosophy developed primarily by Jeremy Bentham and John Stuart Mill in the 18th and 19th centuries. Bentham proposed that all human actions are driven by the pursuit of pleasure and the avoidance of pain, and that the right course of action is whichever produces the greatest happiness for the greatest number of people.

Applied to human rights, this theory suggests that genuine human rights are those that maximize well-being. A right is justified not because it is “natural” or God-given, but because protecting it leads to better outcomes – more happiness, less suffering – for individuals and communities alike.

How it connects to human rights 🔗

From a social utility perspective, rights like freedom of speech, education, and security are valuable because societies that protect them tend to be more stable, productive, and happy. Some scholars argue that utilitarianism actually provides the strongest justification for human rights, since historical human rights instruments – from the Magna Carta to the UDHR – were created largely to prevent suffering and promote collective well-being.

Mill, in particular, argued that certain individual liberties – such as freedom of expression and democratic participation – are essential for society to function well. He saw these freedoms not as abstract entitlements but as practical necessities for determining what truly serves the common good.

Limitations of social utility theory 🔗

Despite its strengths, social utility theory faces significant criticism when applied to human rights. The most fundamental concern is the conflict between individual and collective interests. If rights are justified only by their outcomes, what happens when sacrificing one person’s rights would benefit the majority?

As one analysis puts it, a central purpose of human rights is precisely to protect individuals from being subjected to calculations of pure utility. If the promotion of the greatest happiness for the greatest number can justify overriding an individual’s welfare, then the very notion of an inalienable right is undermined. Slavery, persecution of minorities, or suppression of dissent could theoretically be justified if they produced enough collective benefit – a conclusion most human rights advocates find unacceptable.

Another limitation is that utilitarian calculations are inherently context-dependent. Different societies may reach very different conclusions about which rights are essential based on their own cultural values and circumstances, potentially leading to a form of cultural relativism rather than universal standards.

Rule utilitarians have attempted to address these concerns by arguing that certain rights should be treated as inviolable rules because societies that consistently respect them are happier and more stable in the long run. However, even this approach struggles to guarantee that individual rights will never be sacrificed when extraordinary circumstances seem to demand it.

Natural law vs. social utility: a comparison 🔗

These two theories offer fundamentally different answers to the question: Why do human rights exist?

Natural law theory says rights exist because they are part of the moral fabric of the universe. They are inherent, timeless, and discoverable through reason. This gives human rights an unshakeable foundation – they cannot be voted away or overridden by majority preference. However, critics point out that the theory can be vague about exactly which rights qualify as “natural” and that appeals to divine law or universal nature may not persuade everyone.

Social utility theory says rights exist because they serve human welfare. This makes the theory practical and outcome-focused – it can adapt to changing circumstances and provides a clear method for evaluating competing claims. But its flexibility is also its weakness: if rights depend on consequences, they can always be overridden when the math changes.

In practice, modern human rights law draws from both traditions. The UDHR appeals to inherent human dignity (echoing natural law) while also aiming to create conditions for freedom, justice, and peace (reflecting utilitarian goals). Most real-world human rights frameworks blend moral principle with practical concern, recognising that rights need both a strong philosophical foundation and real-world relevance to endure.

Why these theories still matter 🔗

Understanding the philosophical roots of human rights is not just an academic exercise. Every time a government debates whether to restrict free speech for “national security,” or whether economic development justifies displacing communities, the tension between natural rights and utilitarian reasoning is at play. Every refugee crisis, every debate over healthcare access, every argument about privacy in the digital age – these are all, at their core, questions about what rights people have and why.

The theories of natural law and social utility provide the intellectual tools to engage with these questions. Natural law reminds us that some things should never be compromised, no matter the circumstances. Social utility reminds us that rights must serve real human needs and that abstract principles mean little if people are still suffering.

What do you think? Can human rights truly be universal if different cultures and philosophical traditions disagree on their foundations? And when individual rights conflict with collective well-being, which should take priority – and who gets to decide?

References

1. https://www.un.org/en/about-us/universal-declaration-of-human-rights
2. https://www.amnesty.org/en/what-we-do/universal-declaration-of-human-rights/
3. https://www.un.org/en/about-us/udhr/history-of-the-declaration
4. https://plato.stanford.edu/entries/natural-law-ethics/
5. https://en.wikipedia.org/wiki/Natural_law
6. https://en.wikipedia.org/wiki/Philosophy_of_human_rights
7. https://plato.stanford.edu/entries/utilitarianism-history/
8. https://www.rationalrealm.com/philosophy/ethics/utilitarianism-human-rights-page16.html
9. https://www.sfu.ca/~aheard/417/util.html