another form was.. If you don't sink to their level, then you don't, you sink 6ft below it..
another brilliant one relevant to the famous turning swords into ploughshares..
"I am all for turning swords into ploughshares. But when my enemy has a sword, I don't want a ploughshare" Rabbi Kahane
and if you saw the speech nobel prize winner of Game Theory, yisrael aumann, made .. he quoted that verse and came to the same conclusion, though without that witty line.
another one he said..
"we should be a light to the nations, and not a memorial candle." Kahane.
he had thoughts on everything, though he onlte tended to give the ones related to saving israel.. and problems facing the jewish people..
this one is particularly good
Life is essentially a question of values.
Meir Kahane
or this one we know all too well
One of the great problems with Americans is that - being a decent people - they assume that everyone else is equally decent.
Meir Kahane
there are many here
http://www.brainyquote.com/quotes/authors/m/meir_kahane.html