While the grass grows, the steed starves.
More German Proverbs:
Count not your chickens before they are hatched.German
Sorrow does not pay any debts.
German
Ill got, ill spent.
German
The beggar's bag is bottomless.
German
Success to you! God speed the craft! as the hangman said to the judge.
German
Old trees are not to be bent.
German