Security is the first cause of misfortune.
More German Proverbs:
I rest, therefore I rust.German
When the hen had laid an egg she cackles.
German
To live long, eat like a cat, drink like a dog.
German
A close mouth catcheth no flies.
German
They must hunger in frost who will not work in heat.
German
If the eye does not want to see, neither light nor glasses will help.
German