In English
Taking God as your friend, your heart as the teacher, and the world as the Great Book, acquire all the knowledge you wish to. You should master this (book) using your (head)! Books printed on paper are not so important as this book composed and written by God Himself. It is available everywhere, to everyone, at all times, and is absolutely free. So, even as you pore over your regular textbooks, remember your the Heart; and make sure you always have your true Friend God near you!