A danger foreseen is half avoided.
More German Proverbs:
If you don't make mistakes you don't make anything.German
Scratching and borrowing do well enough, but not for long.
German
Where every one goes, the grass never grows.
German
Fancy requires much, necessity but little.
German
He who listens to a proposition is already half sold.
German
Barking dogs don't bite.
German