Sirach 8:9

9 Miss not the discourse of the elders: for they also learned of their fathers, and of them thou shalt learn understanding, and to give answer as need requireth.

Sirach 8:9 In-Context

7 Rejoice not over thy greatest enemy being dead, but remember that we die all.
8 Despise not the discourse of the wise, but acquaint thyself with their proverbs: for of them thou shalt learn instruction, and how to serve great men with ease.
9 Miss not the discourse of the elders: for they also learned of their fathers, and of them thou shalt learn understanding, and to give answer as need requireth.
10 Kindle not the coals of a sinner, lest thou be burnt with the flame of his fire.
11 Rise not up at the presence of an injurious person, lest he lie in wait to entrap thee in thy words

The Brenton translation of the Septuagint is in the public domain.