Handsome apples are sometimes sour.
More Dutch Proverbs:
The words are fair, said the wolf, but I will not come into the village.Dutch
An ennobled peasant does not know his own father.
Dutch
When the dog is down, every one is ready to bite him.
Dutch
He who plants fruit-trees, must not count upon the fruit.
Dutch
It is hasty speed that doesn't succeed.
Dutch
No one is wise in his own affairs.
Dutch