Books are immortal sons deifying their sires. – Plato

Books, not which afford us a cowering enjoyment, but in which each thought is of unusual daring; such as an idle man cannot read, and a timid one would not be entertained by, which even make us dangerous to existing institution — such call I good books. – Henry David Thoreau

One cannot celebrate books sufficiently. After saying his best, still something better remains to be spoken in their praise. – A. Bronson Alcott, “Books,” June 1869