| 1. Science, Philosophy and Religious Doubt |
| | Philosophers, Doubting and Devout |
| | The Old Science and the Old Faith |
| | The European Enlightenment |
| | Nonbelief Comes of Age |
| | Science and Nonbelief Today |
| | Scientific Naturalism |
| 2. An Accidental World |
| | Why Physics is Hard |
| | The Nature of Modern Physics |
| | The Burden of Proof |
| | God in the Cracks of Causality |
| | Quantum Mysticism |
| | Cosmic Harmonies |
| | Fine-Tuning the Universe |
| | A Moment of Creation? |
| | Physics and Naturalism |
| 3. Darwinian Creativity |
| | Achieving Complexity |
| | The Physics of Evolution |
| | Evolution and Religion |
| | Old-Fashioned Creationism |
| | Intelligent Design |
| | Creation Through Evolution |
| | Universal Darwinism |
| 4. Minds Without Souls |
| | Mind and Matter |
| | Cartesian Dualism |
| | Machines Who Think |
| | Genes and Memes |
| | The Conscious Brain |
| | Qualia and Subjectivity |
| | Mind Over Matter |
| | The God Module |
| | Parts and Wholes |
| | Nonbelief Adapts to Brain Science |
| 5. The Fringes of Science |
| | Ultimate Explanations |
| | Miracles and Rejected Knowledge |
| | Scripture as Miracle |
| | From Spiritualism to New Age |
| | Skeptics vs. Psychics |
| | Miracles in the Laboratory |
| | UFOs and Aliens |
| | Direct Experience of the Paranormal? |
| | Paranormal Skepticism and Nonbelief |
| 6. Explaining Religion |
| | Too Many Religions |
| | Religious Studies |
| | Rational Choice Theory |
| | The Secularization Thesis |
| | Religion and Group Selection |
| | A Virus of the Mind |
| | The Religious Mind |
| | Explaining Theology and Nonbelief |
| 7. Morality and Politics |
| | More Than the Facts |
| | The State of Science |
| | The State of Nonbelief |
| | A Morality of Reason |
| | The Science of Morality |
| | Separate Spheres |
| | An Uneasy Alliance |