Sirach 21:20

20 A fool lifteth up his voice with laughter; but a wise man doth scarce smile a little.

Sirach 21:20 In-Context

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.

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