A dog that barks doesn’t bite.
More Czech Proverbs:
If you do good to the Devil, out of gratitude he will deliver you to hell.Czech
Wars are caused by women and priests.
Czech
Against the beastly human being even the gods are powerless.
Czech
Do not choose your wife at a dance, but in the field among the harvesters.
Czech
Choose your woman with a velvet glove, but control her with a fist of iron.
Czech
The fish does not go after the hook, but after the bait.
Czech