Sirach 21:16 CPDV

¹⁴  One who is not wise in goodness will not accept instruction.

¹⁵  Now there is a wisdom which abounds in evil. But there is no understanding where there is bitterness.

¹⁶  The knowledge of the wise will increase like a flood, and his counsel will continue like a fountain of life.

¹⁷  The heart of the foolish is like a broken vessel, for it will not hold any wisdom.

¹⁸  A knowledgeable man will praise any wise word he hears, and he will apply it to himself. The self-indulgent man has heard it, and it displeases him, and so he casts it behind his back.