Mercy or power.
More Klingon Proverbs:
Don't trust a man wearing a better suit than your own.Klingon
Fools die young.
Klingon
Cowards take hostages. Klingons do not.
Klingon
More is good... all is better.
Klingon
When you insult a Klingon's honor, prepare for trouble.
Klingon
Beware the man who doesn't make time for oo-mox.
Klingon