And as ye go, preach, Matthew 10:7

"if a man acquire his knowledge entirely from books, he will not find himself to be a very wise man. There is such a thing as heaping so many books on your brains that they cannot work—pouring such piles of type, and letters, and manuscripts, and papers, and prints, and pamphlets, and volumes, and tomes, and folios, upon your weary head, that your brains are absolutely buried and cannot move at all. I believe that many of us, whilst we have sought to learn by books, have neglected those great volumes which God has given us; we have neglected to study this great book, the Bible! moreover, perhaps, we have not been careful enough students of the great volume of nature, and we have forgotten that other great book, the human heart.