Thanks for the comments Twpsyn.
Well, it is poetry of course, or at least language set to meter, and the grammar tends to be a bit odd. Are you saying that even when compared to poetry the grammar is (too) odd? If so, why?
In prose the lines would read:
"dum virtus ursi et mens hominis confusae [sunt], nihil impetui veri retinere quit."
You'll have to forgive my lack of experience with latin, but why is this odd?
re 'hominis', i believe it scans short-long-short. This seems to scan fine?
Thanks in advance!