Marrying in the blood is never good.
More German Proverbs:
You don't need a teacher of wickedness.German
Doing nothing teaches doing ill.
German
A lawyer and a cartwheel must be well greased.
German
Marriage is the opposite to a fever attack; it begins very hot and ends very cold.
German
Drunk sweetly, paid sourly.
German
He who would go further than his horse, must alight and go on foot.
German