Sirach 6:18-20

New Revised Standard Version Catholic Edition

¹⁸ My child, from your youth choose discipline,
    and when you have gray hair you will still find wisdom.
¹⁹ Come to her like one who plows and sows,
    and wait for her good harvest.
For when you cultivate her you will toil but little,
    and soon you will eat of her produce.
²⁰ She seems very harsh to the undisciplined;
    fools cannot remain with her.