A book is simply the container of an idea like a bottle; what is inside the book is what matters.
“Praise now is one of the great duties of the redeemed. It will be their employment for ever.”
“In the present state of our knowledge, it would be useless to attempt to speculate on the remote cause of the electrical energy... its relation to chemical affinity is, however, sufficiently evident. May it not be identical with it, and an essential property of matter?”