The single-license study guide for this teaching series is currently available as a free download.

Playlist:

Lecture 4, Four Steps Backward:

How do you know whether something is true? Do you test it by observation? Think through it logically? In this lesson, Dr. Sproul considers important questions from epistemology, the study of knowledge. As he sets forth four logical premises that are necessary for all reasonable discourse, he shows that many atheists violate basic logic in order to deny God’s existence.