Gut Ding will Weile haben — a good thing wants time.
Eile mit Weile — hurry with leisure, a German rendering of festina lente.
Übers Knie brechen — to break something over the knee. The German phrase for forcing a hasty resolution, and it names what happens to the thing.
Erst mal eine Nacht drüber schlafen — sleep a night over it first. Said in German meetings, and acted on.