The End of Faith

Written in the shadow of September 11

Sam Harris began writing The End of Faith on September 12, 2001. The book, published in 2004, predated the other major new atheist works and set the terms for the decade of debate that followed. Its animating insight was that the September 11 attacks were not a perversion of religious faith but a logical consequence of it: when people genuinely believe that martyrdom leads to paradise, some of them will act on that belief.

This was not, in 2004, a comfortable argument. The prevailing liberal consensus held that religion was essentially benign, that extremism was a political rather than theological problem, and that criticizing Islam was a form of bigotry. Harris rejected all three propositions, and the backlash was immediate and lasting.

Religious moderation as cover

The book’s most original and provocative argument is that religious moderates are not the solution to extremism but part of the problem. Harris contends that moderates, by insisting that faith is inherently virtuous and that religious beliefs deserve special respect, create the intellectual climate in which extremism flourishes. They make it impossible to criticize specific doctrines — the literal truth of scripture, the reality of martyrdom, the divine mandate for violence against unbelievers — because those criticisms are perceived as attacks on faith itself.

This argument struck a nerve. Many progressive believers saw it as an attack on religious tolerance. Harris countered that tolerating bad ideas is not the same as tolerating people, and that our willingness to criticize ideas openly is the only mechanism we have for correcting dangerous ones. The principle of charity that we extend to every other domain of human thought — we criticize bad political ideas, bad scientific theories, bad ethical arguments — mysteriously vanishes when the bad idea has the word “God” in it.

Faith versus reason

At its philosophical core, The End of Faith is about epistemology. Harris argues that faith— belief without evidence, or in the face of contrary evidence — is the one mode of thought that humanity cannot afford. Every other domain of human knowledge progresses by demanding evidence, testing claims, and discarding ideas that fail. Religion alone insists that certain claims are beyond scrutiny.

Harris draws a sharp line between beliefs that are proportioned to evidence and beliefs that are not, and argues that the latter category — faith — is intrinsically dangerous regardless of its content. A person who believes, on faith, that God wants universal love is epistemically no different from a person who believes, on faith, that God wants holy war. Both have abandoned the only tool we have for distinguishing truth from falsehood: evidence and reason.

The critique of Islam

The section of the book that generated the most controversy was Harris’ extended critique of Islam. He argued that Islam, as a set of doctrines, is more dangerous than other major religions at this particular moment in history, because its core texts contain explicit and unambiguous instructions for violence that are taken literally by a significant number of believers.

Harris was careful to distinguish between criticizing ideas and criticizing people: he argued that Muslims are diverse and that many live in ways that flatly contradict the most violent passages of their scripture. But he insisted that pretending those passages do not exist, or that they are irrelevant to the behavior of jihadists, is a dangerous form of wishful thinking.

This position earned Harris accusations of Islamophobia — a charge he has vigorously rejected, arguing that criticizing the doctrines of a religion is categorically different from bigotry toward its adherents. The debate continues and has shaped public discourse about the limits of religious criticism ever since.

Consciousness and spirituality

Less discussed but equally important is the book’s final chapter, in which Harris argues that spiritual experience — the subjective sense of self-transcendence, interconnection, and awe — is real and worth investigating, but does not require supernatural beliefs. He draws on his own experience with meditation and contemplative practice to suggest that the good things people find in religion are available through rational, empirical means. This thread would later become the subject of his 2014 book Waking Up: A Guide to Spirituality Without Religion.

Aftermath and legacy

The End of Faith won the PEN/Martha Albrand Award for First Nonfiction and spent 33 weeks on the New York Timesbestseller list. It made Harris — then a graduate student in neuroscience — a public intellectual overnight. Together with Dawkins’ The God Delusion, Hitchens’ God Is Not Great, and Dennett’s Breaking the Spell, it defined the new atheism and made public criticism of religion not just acceptable but mainstream.

Twenty years later, the book reads as both prescient and dated. Its insistence that ideas have consequences, that faith-based reasoning is dangerous, and that religious moderates bear some responsibility for the climate in which extremism thrives remain as relevant as ever. Its specific claims about Islam continue to be debated, often more heatedly than when the book was published.