They told us to treat all men as they treated us; that we should never be the first to break a bargain; that it was a disgrace to tell a lie; that we should speak only the truth; that it was a shame for one man to take from another his wife, or [to take] his property without paying for it.

what central idea from the speech is most strengthened by this quote?

it is important to listen to one’s elders.
it is important to be guided by morals.
it is important to pay for what one wants.
it is important to be faithful to a spouse.