This is a lesson about the nature of faith. It defines faith as both the objects of belief and the subjective virtue by which one accepts these truths. The lesson contrasts human faith with supernatural faith, arguing that faith is a gift from God but also a free human act requiring knowledge and will. It explores the relationship between faith and science, asserting they are compatible because they both stem from God. The lesson emphasizes the importance of living out one's faith in all aspects of life.