If the ball does not stick to the wall, it will at least leave a mark.
More Romanian Proverbs:
Children when they are little make parents fools, when they are great they make them mad.Romanian
Every white hath its black, and every sweet its sour.
Romanian
physicians' faults are covered with earth.
Romanian
If you won't work, you shan't eat.
Romanian
Be ye therefore wise as serpents, and harmless as doves.
Romanian
The best cart may overthrow.
Romanian