Once a thief, always a thief.
More German Proverbs:
He that is busy is tempted but by one devil, he that is idle by a legion.German
The husband's mother is the wife's devil.
German
Where God bestows an office, he provides brains to fill it.
German
Crooked wood burns quite as well as straight.
German
Both noble and common blood are the same color.
German
He that climbs high, falls heavily.
German