Rust cannot do any harm to gold.
More Hungarian Proverbs:
He ties the dog to the post.Hungarian
He who hunts two hares, does not catch even one.
Hungarian
The former highwayman men are the best gendarmes.
Hungarian
A clever master turns even a loss into a gain.
Hungarian
He has hit the udder between the horns.
Hungarian
Without driving even a goat would not go to the market.
Hungarian