Section 1. Of knowledgeSection 2. Of probability; and of the idea of cause and effectSection 3. Why a cause is always necessarySection 4. Of the component parts of our reasonings concerning cause and effectSection 5. Of the impressions of the senses and memorySection 6. Of the inference from the impression to the ideaSection 7. Of the nature of the idea or beliefSection 8. Of the causes of beliefSection 9. Of the effects of other relations and other habitsSection 10. Of the influence of beliefSection 11. Of the probability of chancesSection 12. Of the probability of causesSection 13. Of unphilosophical probabilitySection 14. Of the idea of necessary connexionSection 15. Rules by which to judge of causes and effectsSection 16. Of the reason of animals