Without God, moral obligations have no binding force. Evolution explains why we have moral feelings but not why we are obligated to follow them. Social contracts explain why morality is useful but not why it is binding. Nietzsche was honest: the death of God destroys the moral framework, not just the theological one. The New Atheists live on borrowed moral capital.
Key claims
—Michael Ruse (atheist): "Morality is a collective illusion foisted on us by our genes"
—Evolution explains why we have moral feelings but not why we are obligated to follow them
—Social contracts explain why morality is useful but not why it is binding on the powerful
—Utilitarianism: justifies organ harvesting to save five — conflicts with universal intuition about rights
—Nietzsche: the death of God does not liberate humanity — it destroys the moral framework entirely
—The New Atheists' moral outrage presupposes objective moral standards their framework cannot provide
The moral problem for atheism is not new. It was articulated with brutal honesty by Friedrich Nietzsche — himself an atheist and the most intellectually courageous of atheism's philosophical advocates — when he recognized that the death of God does not merely remove a religious belief. It removes the entire framework within which Western civilization has understood good and evil, right and wrong, human dignity and human obligation.
Nietzsche was more honest than the New Atheists. He understood what the denial of God actually costs. Most contemporary atheists want to deny God and keep the moral furniture — the conviction that cruelty is genuinely wrong, that human beings have inherent dignity, that justice is binding regardless of power. Nietzsche recognized that you cannot have the furniture without the foundation.
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The moral argument stated formally
The Moral Argument for God
P1If God does not exist, then objective moral obligations do not exist.
P2Objective moral obligations do exist.
∴Therefore, God exists.
The first premise follows from the nature of moral authority. Objective moral obligations — genuine duties that bind human beings regardless of personal preference or cultural convention — require a source of authority that transcends personal preference and cultural convention. Physical processes produce facts about what is, not facts about what ought to be. No arrangement of matter and energy, however complex, generates a moral obligation. If the universe is purely physical, then moral claims are ultimately nothing more than expressions of preference, cultural agreements, or evolutionary adaptations — none of which are genuinely binding on anyone.
The second premise — that objective moral obligations exist — is confirmed by nearly universal human moral experience. We do not merely dislike the Holocaust. We know it was wrong — wrong in a way that holds regardless of what the perpetrators believed, regardless of what any culture endorsed. This is not a mere feeling. It is a conviction about objective moral reality that virtually no one, pressed seriously, is willing to abandon.
The combination of these two premises leads to a conclusion that many find uncomfortable: if objective morality is real, something like God must exist to ground it.
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Atheist attempts to ground morality — and why each fails
The atheist philosophical tradition has made serious attempts to ground morality without God. Each attempt, examined carefully, fails to provide what morality requires: genuine, binding obligation.
Evolutionary ethics. Some atheists, following Dawkins, argue that moral intuitions are the product of natural selection — that altruism, empathy, and fairness evolved because they enhanced reproductive fitness in social environments. This is a plausible account of why humans have moral intuitions. It is not an account of why those intuitions are binding.
Evolution selects for what is adaptive. Adaptive behavior is not necessarily morally right behavior, and morally right behavior is not necessarily adaptive. A belief that inclines toward cooperation might be selected because it enhances survival — but this tells us nothing about whether cooperation is obligatory. The feeling that I ought to help a drowning stranger, even at personal cost, is not an evolutionary advantage for me. Yet nearly everyone believes this is a genuine moral obligation. Evolutionary ethics conflates "we feel strongly about X" with "X is actually right." These are not the same.
The moral sense is an adaptation put in place by natural selection in order to further our reproductive ends. Morality is a collective illusion foisted on us by our genes. Given this, there is no foundation for ethics in the sense that ethicists would love to have it.
Ruse is being philosophically honest — evolutionary ethics, taken seriously, dissolves morality into adaptive psychology. The Holocaust was not wrong; it merely reduced the fitness of certain populations in certain environments. This conclusion is intolerable to almost everyone, including most atheists — which reveals that most atheists, in practice, rely on moral convictions that their own framework cannot justify.
Social contract theory. Others argue that morality is a social agreement — a set of rules that rational self-interested agents agree to follow because it benefits everyone. Thomas Hobbes's account is the classic version: in a state of nature, life is nasty, brutish, and short; we agree to moral rules because the alternative is worse for all of us.
Social contract theory explains why it may be in my interest to follow certain moral rules. It does not explain why I am obligated to follow them when it is not in my interest. If morality is only a social agreement, then a sufficiently powerful person or group has no reason to be bound by it. Hitler's Germany was, on the social contract account, a perfectly valid moral community — the contract was internally agreed upon, and those with sufficient power enforced it. The social contract offers no basis for the judgment that what the Nazis did was wrong from a standpoint outside their own agreement.
Utilitarianism. Sam Harris's version — morality is whatever maximizes conscious well-being — is perhaps the most sophisticated secular moral account. But it faces two fatal problems.
First, why should well-being be maximized? This is itself a moral claim — a claim that the well-being of conscious creatures matters and should be promoted. Science cannot establish this. It is imported as a value from outside the scientific framework, without justification.
Second, utilitarianism notoriously produces conclusions that conflict with virtually universal moral intuitions. On a strict utilitarian account, it may be morally required to harvest organs from one healthy person to save five people who need transplants — since five deaths are worse than one. The utilitarian calculus runs directly against the intuition that persons have rights that cannot be violated even for aggregate benefit. Where do these rights come from, on a purely physical account? They have no naturalistic foundation.
Moral realism without God. Some secular philosophers — Derek Parfit, T.M. Scanlon — hold that moral facts are real, objective, and non-natural: they exist but are not reducible to physical facts. This is a more honest position than evolutionary ethics or social contract theory, because it takes moral experience seriously. But it raises the question of what moral facts are and where they come from. Non-natural moral facts floating free in the universe — attached to no consciousness, grounded in no person, serving no purpose — are philosophically puzzling in a way that moral facts grounded in the nature and character of a personal God are not.
Key Point
The New Atheists are morally outraged by religion. Their moral outrage is one of the most prominent features of their rhetoric. But moral outrage requires objective moral standards — the conviction that some things are actually wrong, not merely disliked. The atheist framework, taken seriously, cannot provide those standards. The New Atheists are living on borrowed moral capital.
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Nietzsche's honest diagnosis
Friedrich Nietzsche remains the most intellectually honest atheist in the history of philosophy. His declaration that "God is dead" — found in The Gay Science (1882) and elaborated throughout his work — was not a celebration but a diagnosis. Nietzsche understood precisely what the abandonment of theism entailed, and he had the intellectual courage to follow it to its conclusion.
God is dead. God remains dead. And we have killed him. How shall we comfort ourselves, the murderers of all murderers? What was holiest and mightiest of all that the world has yet owned has bled to death under our knives: who will wipe this blood off us? What water is there for us to clean ourselves? What festivals of atonement, what sacred games shall we have to invent? Is not the greatness of this deed too great for us? Must we ourselves not become gods simply to appear worthy of it?
Nietzsche's point is not that God literally exists and has been murdered. It is that the metaphysical framework that gave Western civilization its sense of value, meaning, and moral order has been destroyed — and the destruction is catastrophic. Without God, there is no objective moral order. There is no inherent human dignity. There is no ultimate justice. There is no cosmic purpose. There is no basis for hope that transcends the individual's brief and contingent existence. Nietzsche called the result "nihilism" — the condition of a world in which all values have been devalued, in which nothing is ultimately binding, in which the question of meaning must be answered by each individual from scratch or not at all.
Nietzsche's response to nihilism was the Übermensch (Overman) — the figure who creates his own values from strength, who imposes meaning on a meaningless cosmos through sheer will. This is an heroic response. It is also a fantasy. The overwhelming majority of human beings cannot and do not live this way — including Nietzsche himself, who suffered a mental collapse at the age of 44 and spent the last eleven years of his life in a state of incapacitation.
The New Atheists promise a godless world that is still full of meaning, purpose, moral seriousness, and human flourishing. Nietzsche was honest enough to see that this promise cannot be kept on atheism's own terms.