Original: «So great is my veneration for the Bible, and so strong my belief that, when duly read and meditated on, it is of all the books in the world that wich contributes most to make men good, wise and happy».
Fuente: Thayer, William Makepeace. The Poor Boy and Merchant Prince; Or, Elements of Success Drawn from the Life of A. Lawrence. A Book for Boys. Publicado en 1861. p. 314. https://books.google.es/books?id=QrJcAAAAcAAJ&pg=PA314&dq=Of+all+the+books+in+the+world,+it+is+the+one+that+contributes+most+to+making+men+good,+wise+and+happy.+John+Quincy+Adams&hl=es&sa=X&ved=0ahUKEwiM_JOowOTfAhWv3OAKHYfTAbgQ6AEIKDAA#v=onepage&q=Of%20all%20the%20books%20in%20the%20world%2C%20it%20is%20the%20one%20that%20contributes%20most%20to%20making%20men%20good%2C%20wise%20and%20happy.%20John%20Quincy%20Adams&f=false
Fuente: Letters of John Quincy Adams to His Son (Cartas de John Quincy Adams a su hijo), 1849, pág. 9.
