Sirach 21:15-25

15 If a skilful man hear a wise word, he will commend it, and add unto it: but as soon as one of no understanding heareth it, it displeaseth him, and he casteth it behind his back.
16 The talking of a fool is like a burden in the way: but grace shall be found in the lips of the wise.
17 They enquire at the mouth of the wise man in the congregation, and they shall ponder his words in their heart.
18 As is a house that is destroyed, so is wisdom to a fool: and the knowledge of the unwise is as talk without sense.
19 Doctrine unto fools is as fetters on the feet, and like manacles on the right hand.
20 A fool lifteth up his voice with laughter; but a wise man doth scarce smile a little.
21 Learning is unto a wise man as an ornament of gold, and like a bracelet upon his right arm.
22 A foolish man's foot is soon in his house: but a man of experience is ashamed of him.
23 A fool will peep in at the door into the house: but he that is well nurtured will stand without.
24 It is the rudeness of a man to hearken at the door: but a wise man will be grieved with the disgrace.
25 The lips of talkers will be telling such things as pertain not unto them: but the words of such as have understanding are weighed in the balance.

The Brenton translation of the Septuagint is in the public domain.