Introduction: Towards a Chaos Theory of Human Nature, Chapter one: The Embodiment of Intoxication, Chapter two: Biology and Experience, Chapter three: The Evolution of the Mind, Chapter four: Consciousness and Language, Chapter five: Reason, Rationality and Individual Action, Chapter six: Adaptation and Uncertainty in Human Nature, Chapter seven: Principles of Complexity and Chaos, Chapter eight: Working With Chaos, Chapter nine: Chaos and Intoxication, Chapter ten: Is Existence Fractal?