Ben Sira 21:19

19 Doctrine unto fools is as fetters on the feet, and like manacles on the right hand.

Ben Sira 21:19 In-Context

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.
The King James Version is in the public domain.