The razor against the grindstone.
God is a father, happiness is a stepfather.
He who studies does not waste his time.
Never put a sword into a madman's hand.
A handsome hostess is bad for the purse.
Proverbs cannot be contradicted.
You can't hold another fellow down in the ditch unless you stay down there with him.
When the cat hops around, bad weather is on the way.
Fine words butter no parsnips.