You are teaching a fish to swim.
More Latin Proverbs:
The evil is lessened when it is seen beforehand.Latin
He does not show a decent quality even over a good dinner.
Latin
Do chattering monkeys mimic men, Or we, turned apes, out-monkey them?
Latin
The revenge of an idiot is without mercy.
Latin
His wit got wings and would have flown, But poverty still kept him down.
Latin
His heart fell down to his heels.
Latin