When Men Are Most Sure

Reasoning From The Common Course Of Nature, And Without Supposing Any New Interposition Of The Supreme Cause, Which Ought Always To Be Excluded From Philosophy; What Is Incorruptible Must Also Be Ingenerable. The Soul, Therefore, If Immortal, Existed Before Our Birth: And If The Former Existence Noways Concerned Us, Neither Will The Latter.

To Have Recourse To The Veracity Of The Supreme Being, In Order To Prove The Veracity Of Our Senses, Is Surely Making A Very Unexpected Circuit.

In The Sphere Of Natural Investigation, As In Poetry And Painting, The Delineation Of That Which Appeals Most Strongly To The Imagination, Derives Its Collective Interest From The Vivid Truthfulness With Which The Individual Features Are Portrayed.

If We Take In Our Hand Any Volume; Of Divinity Or School Metaphysics, For Instance; Let Us Ask, Does It Contain Any Abstract Reasoning Concerning Quantity Or Number? No. Does It Contain Any Experimental Reasoning Concerning Matter Of Fact And Existence? No. Commit It Then To The Flames: For It Can Contain Nothing But Sophistry And Illusion.

The Senses Alone Are Not Implicitly To Be Depended On. We Must Correct Their Evidence By Reason, And By Considerations, Derived From The Nature Of The Medium, The Distance Of The Object, And The Disposition Of The Organ, In Order To Render Them, Within Their Sphere, The Proper Criteria Of Truth And Falsehood.