Emerson devotes much of his discussion to the second influence on the mind, past learning — or, as he expresses it, the influence of books. In the first three paragraphs of this section, he emphasizes that books contain the learning of the past; however, he also says that these books pose a great danger. While it is true that books transform mere facts ("short-lived actions") into vital truths ("immortal thoughts"), every book is inevitably a partial truth, biased by society's standards when it was written. Each age must create its own books and find its own truths for itself.