Without knowledge, without sin.
More German Proverbs:
Never fight an enemy whilst it is possible to cheat him.German
Two hard flints never grind well.
German
Better ask twice than go wrong once.
German
No viper so little but hath its venom.
German
Who has a mouth, let him not say to another, "Blow!"
German
A doctor and a boor know more than a doctor alone.
German