Fear is power.
More Klingon Proverbs:
A contract is a contract is a contract... but only between Ferengi.Klingon
Only fools don't attack.
Klingon
No one survived Khitomer.
Klingon
New customers are lik razor-toothed Gree worms, they may be succulent, but sometimes they bite.
Klingon
Satisfaction is not guaranteed.
Klingon
No Klingon ever breaks his word.
Klingon