A cart-horse could never win the derby.
More Irish Proverbs:
Reputations last longer than lives.Irish
A debt is still unpaid, even if forgotten.
Irish
Law is costly; shake hands and be friends.
Irish
Never burn your fingers to snuff another man's candle.
Irish
There is no feast till a roast and no torment till a marriage.
Irish
The seeking for one thing will find another.
Irish