A mad bull is not to be tied up with a packthread.
More Greek Proverbs:
A drowning man takes hold of his own hair.Greek
Where there is a sea there are pirates.
Greek
The tongue has no bones, yet it breaks bones
Greek
He who plunders with a little boat is a pirate; he who plunders with a fleet is a conqueror.
Greek
One word spoken in anger may spoil an entire life.
Greek
Kindness begets kindness.
Greek