No one is wise enough to advice himself.
More German Proverbs:
No one knows better where the shoe pinches that he who wears it.German
First look at home, then censure me.
German
If I canna do't by might, I'll do't by sleight.
German
Where ghosts walk, there is loving or thieving.
German
The fast faggot is not easily broken.
German
When the dog is awake, the shepherd may sleep.
German