When I see injustice, I immediately feel that it's wrong. Where does this intuition come from?

This immediate feeling that strikes you when witnessing injustice is what we call "moral intuition," and it represents one of the deepest questions in moral philosophy. We all experience this feeling: we see a child being beaten for no reason and immediately feel that this is wrong, before we think or analyze. We witness someone stealing from the weak and feel internal anger, even if the matter doesn't directly affect us. This intuition transcends cultures and languages, which raises the question: where does it come from?

Inadequate responses to avoid

From some believers:

"God placed morality in our hearts, period." This response, though it may be correct, is insufficient as a philosophical answer. The question isn't only "who placed it?" but "how does it work? Why do people sometimes disagree? What is its relationship to our human nature?" Believing in a divine origin of morality doesn't substitute for understanding how it operates.

"Morality is clear to everyone with sound natural disposition (fiṭra)." This ignores reality. If morality were completely clear to everyone, people wouldn't disagree on many moral issues. Some societies viewed slavery as acceptable, and some saw euthanasia as moral. Excessive simplification doesn't aid understanding.

From some materialists:

"Morality is merely biological evolution for survival." This response explains some behaviors (like cooperation) but stumbles before others. Why do we feel injustice even toward strangers we'll never meet? Why do we admire those who sacrifice their lives to save others? Evolution favors survival, not sacrifice. Biological reductionism doesn't explain the depth of moral experience.

"Morality is merely social conditioning." If this were the case, we wouldn't be able to morally critique our society. Those who fought slavery or racial segregation went against the social conditioning of their era. Where did their intuition that their society was wrong come from? The theory doesn't explain our capacity to transcend what we learned.

"Morality is an illusion, it has no real existence." This nihilistic position clashes with our daily experience. Even those who claim morality is an illusion become angry when wronged and demand justice when their property is stolen. The contradiction between theory and practice reveals the position's weakness.

Why these responses are inadequate

All these responses attempt to simplify a complex phenomenon. Moral intuition is a multi-dimensional phenomenon: it has a biological aspect (our brains are equipped for it), a social aspect (we learn its details from our society), a personal aspect (our experiences shape it), and perhaps a metaphysical aspect (its connection to the nature of existence). An adequate answer must take all these dimensions into account.

Serious positions in the debate

First, the theory of moral natural disposition (fiṭra). This position — adopted by philosophers from different religions and cultures — sees that humans are naturally endowed with basic moral perception. The point isn't that all moral details are innate, but that there's a basic "moral compass": the sense that there is right and wrong, and the inclination toward justice and mercy. This natural disposition may be corrupted by poor upbringing or refined by good upbringing, but its origin exists in every human.

Second, moral realist theory. Some philosophers see that morality has objective existence, like mathematical truths. Just as 2+2=4 is an objective truth we perceive with our minds, so "injustice is wrong" is an objective truth we perceive with our moral intuition. This intuition may sometimes err (as we may err in calculation), but generally it guides us to objective moral truths.

Third, the integrative theory. A third position sees that moral intuition has multiple integrated sources: a biological aspect (natural inclination toward empathy), a rational aspect (capacity to perceive justice), a social aspect (learning from society), and perhaps a spiritual aspect (connection to a transcendent source). These sources work together to produce our rich moral experience.

Where we stand in this debate today

Contemporary research in neuroscience reveals that the human brain contains specialized regions for moral judgment, and that infants show preference for "fair" behavior before learning language. This supports the idea of an innate foundation for morality. At the same time, anthropological research shows diversity in moral applications across cultures, confirming the role of learning and culture.

Today's philosophical debate tends toward integrative models that combine these findings. Moral intuition — according to these models — is neither an illusion nor purely biological programming, but a real human capacity with multiple roots. Whether we explain these roots through a divine source, the nature of human consciousness, or the necessities of social life, moral intuition remains a fundamental part of our humanity.

For advanced reading

─ Intermediate level: The theory of moral sense in Francis Hutcheson
─ Advanced level: Contemporary moral intuitionism in Robert Audi
─ "Moral Argument" family page on the website
─ Research on "Moral Natural Disposition (Fiṭra) between Philosophy and Neuroscience"