Sirach 22:15-17

Common English Bible

¹⁵ Sand, salt, and a lump of iron
    are easier to bear
    than an unintelligent person.

¹⁶ A wooden beam fastened into a building
        won’t be loosened by an earthquake.
    So a heart firmly set
    on thoughtful counsel
        won’t be afraid at any time.
¹⁷ A heart fixed on thoughtful understanding
    is like an engraved ornament
    on a smooth wall.