A gosling flew over the Rhine, and came home a goose.
More German Proverbs:
There is no occasion for priests to marry, while peasants have wives.German
Tis the mind ennobles, not the blood.
German
What is said is said, and no sponge can wipe it out.
German
Success to you! God speed the craft! as the hangman said to the judge.
German
They wrangle about an egg, and let the hens fly away.
German
Children and fools speak the truth.
German