“Any book thoughtfully read sharpens the mind and improves on and individual's professional potential.”
“If you are reading in order to become a better reader, you cannot read just any book or article. You will not improve as a reader if all you read are books that are well within your capacity. You must tackle books that are beyond you, or, as we have said, books that are over your head. Only books of that sort will make you stretch your mind. And unless you stretch, you will not learn.”
“If you want to improve the world, first improve yourself. If you want to improve yourself, read a book.”
“If time is precious, no book that will not improve by repeated readings deserves to be read at all.”
“What is reading, in the last analysis, but an interchange of thought between writer and reader? If the book enters the reader's mind just as it left the writer's -- without any of the additions and modifications inevitably produced by contact with a new body of thought -- it has been read to no purpose.”
“... judicious books enlarge the mind and improve the heart ...”