Religions, philosophers and scientists each offer part of an answer, so here is what research shows about our moral sense and what it cannot settle.
God Plays Dice Editorial · independently fact-checked · corrections welcomeChecked Sep 26, 20268 min read
THE SHORT ANSWER
From several places at once, and people still disagree about the deepest part. Research suggests our moral sense has roots in human nature and grows through upbringing and culture. Toddlers readily help others, and some monkeys react to unfair treatment. Many religions teach that right and wrong come from God. Philosophers point to good outcomes, duties or good character. What ultimately makes right right is beyond what science can settle.
In a 2006 study, children as young as 18 months readily helped adults reach their goals, and three young chimpanzees helped too, less reliably.
In a 2003 study, capuchin monkeys refused to take part when a partner got a better reward for the same effort.
A famous 2007 finding that babies prefer “helpers” did not hold up in a 2025 test of 567 infants from 37 labs.
A study of 60 societies found seven cooperative rules, such as helping family and returning favors, treated as good wherever they appeared.
In a 2019 Pew survey in 34 countries, a median of 45% said belief in God is necessary to be moral; in the U.S. it was 44%.
About this picture
A capuchin monkey in Madidi National Park, Bolivia, in 2008. In a 2003 study, capuchins refused to trade when they saw a partner get a better reward for the same work.
Parts of our moral sense, such as helping and a reaction to unfairness, show up early in children and in other primates.Warneken and Tomasello (Science, 2006): helping in 18-month-olds and in three young chimpanzees; Brosnan and de Waal (Nature, 2003): capuchins refuse unequal pay. How much is inborn and how much learned is still argued.
Babies prefer characters who help over characters who hinder.Hamlin, Wynn and Bloom (Nature, 2007) reported it, but Schlingloff, Csibra and Tatone (2020) found 16 of 32 infants aged 14 to 16 months chose the helper, and the ManyBabies team (Developmental Science, 2025) found 49.34% of 567 infants did, no different from chance.
Some core moral rules, like helping family and returning favors, are shared across cultures.Curry and colleagues’ study of 60 societies (Current Anthropology, 2019, as reported by the University of Oxford) found seven cooperative behaviors considered good everywhere they appeared, ranked differently; moral foundations theory (Graham et al., 2011) is a rival account.
Philosophers agree on which moral theory is correct.2020 PhilPapers Survey: 37.0% virtue ethics, 32.1% deontology and 30.6% consequentialism among philosophers who answered.
What ultimately makes right right is God, reason, human nature or something else.The Stanford Encyclopedia of Philosophy sets out divine command theory, natural law and secular theories as live positions. Research can describe how moral beliefs form, but no experiment can decide which foundation is correct.
How much of our moral sense is inborn and how much is learned is still debated, and so is how early it appears. What ultimately makes right right is a question science cannot settle.
WHAT WOULD CHANGE THIS ANSWER
Large new studies that found a reliable moral preference in young babies would strengthen the case for an inborn moral sense. Finding societies that praised cheating or abandoning family would weaken the case for shared moral rules.
From several places at once. Research suggests that our sense of right and wrong has roots in human nature. It then grows through family, faith, culture and our own thinking. Many religions teach that right and wrong come from God, or from a human nature God made. Philosophers offer other answers too. And the deepest question, what makes right truly right, is one science cannot settle.
People ask this for many reasons. A believer may wonder how a friend with no faith can be so kind. Someone who left a religion may worry that without God, nothing is really wrong. A parent may wonder whether kindness has to be taught. These are fair questions. People answer them in good faith from many directions.
Here is some of what research shows. In one study, toddlers as young as 18 months readily helped adults reach their goals, in many different situations. In another, capuchin monkeys refused to take part when a partner got a better reward for the same work. A study of 60 societies found seven cooperative rules, such as helping your family and returning favors, treated as good in every society where they showed up. But not every famous finding holds up. A 2007 study reported that babies prefer characters who help over ones who hinder. A large test in 37 labs, published in 2025, did not find that preference.
People also disagree about God and goodness. In a 2019 Pew Research Center survey in 34 countries, a median of 45% said it is necessary to believe in God in order to be moral and have good values. In the United States, 44% said so, and 54% said it is not necessary.
So we give two labels. How our moral sense develops: Supported, still debated. What ultimately grounds right and wrong: Beyond science. You are welcome here, whatever you believe.
THE LONG ANSWER
THE LONG ANSWER · ABOUT 7 MINUTES
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The short answer, how sure we are, what we don’t know, what would change our mind and every source stay free on every page, for everyone.
All Access members read the long answer: the evidence piece by piece, the strongest objections, and how to check it yourself.
The view that the source and binding force of morality, or at least of moral duty, come from God’s will or command.
Natural law
A tradition, best known from Thomas Aquinas, that sees basic moral principles as built into human nature and knowable through reason.
Consequentialism
The approach that judges actions by their results, such as how much well-being they produce.
Deontology
The approach that stresses duties and moral rules, whatever the results.
Virtue ethics
The approach that puts good character, such as kindness and honesty, at the center of morality.
Euthyphro dilemma
A question from Plato: is something good because God (or the gods) loves it, or does God love it because it is good?
Sources & further reading
(10) · Checked Sep 26, 2026
Religion and Morality in Western Philosophy ↗Stanford Encyclopedia of Philosophy (rev. 2024)Religion and morality intertwined from the start of Western thought; the Euthyphro question (Euthyphro 10a); Aquinas on natural law as human participation in the eternal law through practical reason; Kant on treating humanity always as an end, never merely as a means; revived divine command theory (Quinn 1978, defending it against the charge of arbitrariness; Adams 1999, obligation is always to someone). Natural law detail from the SEP entry “The Natural Law Tradition in Ethics” (https://plato.stanford.edu/entries/natural-law-ethics/): all human beings possess a basic knowledge of the principles of the natural law, even if implications can be hard to work out (ST IaIIae 94, 4; 100, 1).
Virtue Ethics ↗Stanford Encyclopedia of Philosophy (rev. 2026)Virtue ethics as one of three major approaches in normative ethics, with deontology and consequentialism; the helping example, including the utilitarian (maximize well-being), deontologist (“Do unto others as you would be done by”) and virtue ethicist (charitable or benevolent).
Philosophers on Philosophy: The 2020 PhilPapers Survey ↗David Bourget and David J. Chalmers, Philosophers’ Imprint (2023)1,785 of 7,685 target philosophers completed it. Normative ethics (inclusive): virtue ethics 37.0%, deontology 32.1%, consequentialism 30.6%, other 18.2%. Meta-ethics: moral realism 62.1%, anti-realism 26.1%. Footbridge: push 22.0%, don’t push 56.0%, other 22.0%.
Altruistic helping in human infants and young chimpanzees ↗Warneken and Tomasello, Science 311:1301–3 (2006)Children as young as 18 months readily help others achieve their goals in a variety of situations; similar though less robust helping in three young chimpanzees.
Monkeys reject unequal pay ↗Brosnan and de Waal, Nature 425:297–9 (2003)Brown capuchins refused to participate when a partner got a more attractive reward for equal effort, amplified when the partner got it without effort; authors conclude an early evolutionary origin of inequity aversion.
Infants’ Social Evaluation of Helpers and Hinderers: A Large-Scale, Multi-Lab, Coordinated Replication Study ↗Lucca, Yuen, Wang, … Hamlin (ManyBabies), Developmental Science 28(1):e13581 (2025)1,018 infants tested, 567 included, ages 5.5 to 10.5 months, 37 labs, five continents; 49.34% preferred Helpers, not different from chance. Original study: Hamlin, Wynn and Bloom, Nature 450:557–9 (2007), doi:10.1038/nature06288 (6- and 10-month-olds). Earlier replication: Schlingloff, Csibra and Tatone, Royal Society Open Science (2020), doi:10.1098/rsos.191795 (16 of 32 infants, 50%).
Seven moral rules found all around the world ↗University of Oxford news (2019), on Curry and colleagues, Current Anthropology (2019), doi:10.1086/701478Ethnographic accounts from 60 societies, over 600,000 words from over 600 sources; seven cooperative behaviors always considered morally good, no counter-examples; societies prioritized them differently (“variation on a theme”).
Mapping the moral domain ↗Graham, Nosek, Haidt and colleagues, Journal of Personality and Social Psychology 101(2):366–85 (2011)Moral Foundations Questionnaire based on five universally available (but variably developed) sets of moral intuitions: Harm/Care, Fairness/Reciprocity, Ingroup/Loyalty, Authority/Respect, Purity/Sanctity.
The Global God Divide ↗Pew Research Center (July 20, 2020)38,426 people in 34 countries, May 13 to Oct. 2, 2019; median 45% say it is necessary to believe in God to be moral and have good values; U.S. 44%, Canada 26%, Sweden 9%, Indonesia and Philippines 96%. Topline Q30 wording: “It is not necessary to believe in God in order to be moral and have good values OR It is necessary to believe in God in order to be moral and have good values”; U.S. 2019: 54% not necessary, 44% necessary.
Declaration Toward a Global Ethic ↗Parliament of the World’s Religions, Chicago (Sept. 4, 1993), copy hosted by Georgetown’s Berkley Center“There is a principle which is found and has persisted in many religious and ethical traditions of humankind for thousands of years: What you do not wish done to yourself, do not do to others.”
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Supported, still debated9 min read
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