Good News Translation
When an educated person hears something that shows insight, it stimulates his mind and leads him on to other ideas. But when someone who is satisfied with ignorance hears it, he won't like it, and will forget it as soon as he can.

New Revised Standard Version
When an intelligent person hears a wise saying, he praises it and adds to it; when a fool hears it, he laughs at it and throws it behind his back.

Contemporary English Version
When the wise hear a proverb, they give it praise and add more to it; but fools merely laugh and forget it.

New American Bible
When the intelligent hear a wise saying, they praise it and add to it. The wanton hear it with distaste and cast it behind their back.

Douay-Rheims Bible
But there is a wisdom that aboundeth in evil: and there is no understanding where there is bitterness.

But there is a wisdom that aboundeth in evil: and there is no understanding where there is bitterness.

Sirach 21:13
The perfection of the fear of God is wisdom and understanding.

Sirach 21:14
He that is not wise in good, will not be taught.

Sirach 21:16
The knowledge of a wise man shall abound like a flood, and his counsel continueth like a fountain of life.

Sirach 21:17
The heart of a fool is like a broken vessel, and no wisdom at all shall it hold.