Sirach 8:7-9

Revised Standard Version Catholic Edition

⁸ Do not slight the discourse of the sages,
    but busy yourself with their maxims;
because from them you will gain instruction
    and learn how to serve great men.
⁹ Do not disregard the discourse of the aged,
    for they themselves learned from their fathers;
because from them you will gain understanding
    and learn how to give an answer in time of need.