You are looking for wings in a wolf. [You hunt for impossibilities.]
More Latin Proverbs:
Even hares insult a dead lion.Latin
You win a few, you lose a few.
Latin
The diseases of the mind are either caused or cured by the power of music.
Latin
Many hands make light work.
Latin
Everyone is eloquent in his own cause.
Latin
The Fates will not permit it.
Latin