Ben Sira 42:8

8 Be not ashamed to inform the unwise and foolish, and the extreme aged that contendeth with those that are young: thus shalt thou be truly learned, and approved of all men living.

Ben Sira 42:8 In-Context

6 Sure keeping is good, where an evil wife is; and shut up, where many hands are.
7 Deliver all things in number and weight; and put all in writing that thou givest out, or receivest in.
8 Be not ashamed to inform the unwise and foolish, and the extreme aged that contendeth with those that are young: thus shalt thou be truly learned, and approved of all men living.
9 The father waketh for the daughter, when no man knoweth; and the care for her taketh away sleep: when she is young, lest she pass away the flower of her age; and being married, lest she should be hated:
10 In her virginity, lest she should be defiled and gotten with child in her father's house; and having an husband, lest she should misbehave herself; and when she is married, lest she should be barren.
The King James Version is in the public domain.