Sirach 42:4-8

4 Of exactness of balance and weights; or of getting much or little;

5 And of merchants' indifferent selling; of much correction of children; and to make the side of an evil servant to bleed.

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.