{21:15} Now there is a wisdom which abounds in evil. But there is no understanding where there is bitterness.
{21:16} The knowledge of the wise will increase like a flood, and his counsel will continue like a fountain of life.
{21:17} The heart of the foolish is like a broken vessel, for it will not hold any wisdom.
{21:18} 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.
{21:19} The talk of the foolish is like a burden on a journey. But in the lips of the understanding, grace will be found.
{21:20} The mouth of the prudent is sought in the Church, and they will consider his words in their hearts.
{21:21} Like a house which has been demolished, so is wisdom to the foolish. And the knowledge of the unwise is like meaningless words.