You are teaching iron to swim.
More Latin Proverbs:
If you sit on a seat, and that seat is a comfortable seat, sit on that seat, and do not leave that seat.Latin
My bark, once struck by the fury of the storm, dreads again to approach the place of danger.
Latin
He says what is wholly irrelevant.
Latin
All clouds are not rain clouds.
Latin
He prepares evil for himself who plots mischief for others.
Latin
It is a mean thing to despise unsuccessful merit.
Latin