The wood has ears, the field has eyes.
More German Proverbs:
Time is the herald of truth.German
When the measure is full, it runs over.
German
Where all adulterers to wear grey coats, the cloth would be dear.
German
Those in a high position can be seen from far away.
German
He who inherits a farthing, is expected to disburse a dollar.
German
Presents keep friendship warm.
German