⁹ In the ears of a fool do not speak,
    for he will despise the wisdom of your words.

¹² A ring of gold and an ornament of fine gold
    is a rebuke of the wise to the ear of a listener.

⁵ Better a rebuke that is open
    than a love that is hidden.
⁶ The wounds of a friend mean well,
    but the kisses of an enemy are profane.

¹⁷ As iron sharpens^[a] iron,
    so one man sharpens another.^[b]