Sirach 21:11-13

Revised Standard Version Catholic Edition

¹¹ Whoever keeps the law controls his thoughts,
    and wisdom is the fulfilment of the fear of the Lord.
¹² He who is not clever cannot be taught,
    but there is a cleverness which increases bitterness.
¹³ The knowledge of a wise man will increase like a flood,
    and his counsel like a flowing spring.