Old crows are hard to catch.
More German Proverbs:
Don't cry hurra! till your are over the hedge (till you are out of the wood).German
One enemy can harm you more than a hundred friends can do you good.
German
Sudden glory soon goes out.
German
He who serves small masters, is himself one of them.
German
A glutton young, a beggar old.
German
Necessity seeks bread where it is to be found.
German