Sirach 10:25-27

Revised Standard Version

²⁵ Free men will be at the service of a wise servant,
    and a man of understanding will not grumble.

²⁶ Do not make a display of your wisdom when you do your work,
    nor glorify yourself at a time when you are in want.
²⁷ Better is a man who works and has an abundance of everything,
    than one who goes about boasting, but lacks bread.