Doctrine unto fools is as fetters on the feet, and like manacles on the right hand.
WEB
Sirach 21:19
Instruction is as fetters on the feet of an unwise man, and as manacles on the right hand.
Parallel Translations
Doctrine to fools is as fetters on the feet, and like manacles on the right hand.
Doctrine unto fools is as fetters on the feet, and like manacles on the right hand.