Ecclesiasticus
King James Version (KJV)

Now viewing scripture range from the book of Ecclesiasticus chapter 22:14 through chapter 22:17...
14 What is heavier than lead? and what is the name thereof, but a fool?
15 Sand, and salt, and a mass of iron, is easier to bear, than a man without understanding.
17 A heart settled upon a thought of understanding is as a fair plaistering on the wall of a gallery.