Mortal Questions by Thomas Nagel

Context

Mortal Questions, published in 1979 by Cambridge University Press, collects thirteen of Thomas Nagel's essays from the decade 1969–1979, a period that established him as one of the most original and influential philosophers of his generation. The collection ranges across the philosophy of mind, ethics, political philosophy, and the meaning of life, and it contains three essays that have become classics: "What Is It Like to Be a Bat?", "Moral Luck", and "The Absurd."

The book's unity lies in its preoccupation with the limits of the objective standpoint. Nagel's deepest theme is the tension between the subjective view — the view from here, with its particular experiences, interests, and attachments — and the objective view — the view from nowhere, which aims to describe reality as it is independent of any observer. Each essay explores a corner of this tension: the bat essay in the philosophy of mind, moral luck in ethics, the absurd in the meaning of life, death in the metaphysics of value. The collection is a sustained meditation on how much of human life resists objective capture — and on what that fact means for philosophy.

Core Arguments

What Is It Like to Be a Bat?

The collection's most famous essay, first published in 1974, argues that consciousness has an irreducibly subjective character that escapes objective description. Bats navigate by echolocation, and there is something it is like to be a bat — from the bat's own point of view. We can know all the objective facts about the bat's neurophysiology without knowing what its experience is like. Nagel concludes that physicalist theories of mind leave out the subjective character of experience: the "what it is like" that is the essence of consciousness. The essay is the founding document of the modern debate about the explanatory gap and the hard problem, and it directly inspired Frank Jackson's knowledge argument and David Chalmers' formulation of the hard problem.

The Absurd

"The Absurd" (1971) is Nagel's answer to the question of whether life is meaningless. Absurdity, he argues, arises from the collision between our seriousness and our doubt: we take our lives, projects, and values with complete seriousness, yet we can step back and question them from an external standpoint, and from that standpoint they seem arbitrary. Nagel rejects both the heroic response (Camus's defiant revolt) and the despairing response (nihilism). The absurd is not a reason for despair because it is not a discovery about the world but a permanent feature of the human condition — a "situational" absurdity that arises whenever we apply the objective standpoint to our own lives. Since we cannot escape it, the appropriate response is irony: to recognize the absurdity and continue to take our lives seriously anyway, as we inevitably do.

Moral Luck

"Moral Luck" (1979) is one of the most influential essays in modern ethics. Nagel argues that moral assessment is profoundly affected by luck: whether an agent is blameworthy or praiseworthy depends on factors beyond their control — the consequences of their actions, their circumstances, their character, and even the causal structure of their agency. The drunk driver who happens to kill a pedestrian is judged far more harshly than the equally drunk driver who happens to drive safely. Nagel shows that the idea of moral responsibility, which seems to require control, is systematically undermined by the pervasiveness of luck — a conclusion that connects his ethics to the free will debate and to Derek Parfit's work on personal identity and morality.

Death

"Death" (1970) examines the question of whether death is an evil. Against Epicurus's argument that death is nothing to us because there is no subject to suffer it when it occurs, Nagel argues that death is an evil because it deprives us of life — of goods we would otherwise have had. The evil of death is a deprivation: it is bad for the person who dies because it cuts off the good of continued life, even though the dead person no longer exists to experience the loss. This "deprivation account" of the evil of death has become the standard philosophical treatment of the topic.

Key Concepts

The collection's key concepts — what it is like, the subjective character of experience, the view from nowhere, the absurd, moral luck, and the deprivation account of death — have become standard tools of contemporary philosophy. The book also contains influential treatments of equality, war and massacre, and the fragmentation of value in "The Fragmentation of Value" and "War and Massacre."

Legacy & Influence

Mortal Questions established Nagel as a defining voice in late twentieth-century philosophy and remains one of the most widely read collections in the discipline. "What Is It Like to Be a Bat?" is among the most cited papers in philosophy, and it permanently changed the philosophy of mind: after Nagel, no physicalist theory could ignore the subjective character of experience, and the explanatory gap became the central problem of consciousness studies. "Moral Luck" and "The Absurd" are staples of ethics and existentialist philosophy courses, and "Death" set the agenda for the philosophy of death. The collection's influence extends well beyond philosophy into cognitive science, psychology, and the humanities, and its essays continue to be assigned and debated wherever philosophy is taught.

Reading Guide

The essays in Mortal Questions are short, lucid, and accessible, and each can be read independently. For the philosophy of mind, read "What Is It Like to Be a Bat?"; for ethics, "Moral Luck"; for the meaning of life, "The Absurd"; for the philosophy of death, "Death". The essays reward rereading, and Nagel's own later book The View from Nowhere (1986) develops the theme that unites them: the irreconcilable tension between the subjective and objective standpoints. The answer page on what it is like to be a bat provides a compact introduction to the bat argument.

Related Works

The bat essay is the ancestor of Frank Jackson's knowledge argument and David Chalmers' The Conscious Mind (1996). "Moral Luck" connects to the free will debate treated in what is free will and to the ethics of Derek Parfit. "The Absurd" engages the existentialist tradition of Sartre and Camus and the question of the meaning of life, and "Death" connects to what is death.