Books appear to be the most immediate instruments of speculative delight.

In books I find the dead as if they were alive; in books I foresee things to come; in books warlike affairs are set forth; from books come forth the laws of peace.All things are corrupted and decay in time; Saturn ceases not to devour the children that he generates; all the glory of the world would be buried in oblivion, unless God had provided mortals with the remedy of books.

[A]ll who are smitten with the love of books think cheaply of the world and wealth; as Jerome says to Vigilantius: The same man cannot love both gold and books... The hideousness of vice is greatly reprobated in books, so that he who loves to commune with books is lead to detest all manner of vice. The demon, who derives his name from knowledge, is most effectually defeated by the knowledge of books, and through books his multitudinous deceits and the endless labyrinths of his guile are laid bare to those who read...

In books I meet the dead as if they were alive,in books I see what is yet to come...All things decay and pass with time...all fame would fall victim to oblivionif God had not given mortal men the book to aid them.

All the glory of the world would be buried in oblivion unless God had provided mortals with the remedy of books.