The passage I referred to in class appears in Book 16, lines 328-355. In it Telemachus says:
" . . . I think your last plan would gain us nothing. 345
Reconsider, I urge you.
You'll waste time roaming around our holdings,
probing the fieldhands man by man, while the suitors
sit in our house, devouring all our goods -
those brazen rascals never spare a scrap! 350
But I do advise you to sound the women out:
who are disloyal to you, who are guiltless?
The men - I say no testing them farm by farm.
That's work for later, if you have really seen
a sign from Zeus whose shield is storm and thunder." 355
. . . Now as father and son conspired, shaping plans . . .
What do you think of this discourse between Odysseus and Telemachus in Book 16?