If you ever viewed the movie before .....the title of the movie is the "Kingdom of God" this speech comes to the fore front..
In the movie during the Crusades after a very exhaustive battle for the city of Jerusalem with severe losses on both sides, the terms of surrender are being discussed and the lead Christian actor asks the lead Muslim actor who is walking away " What is Jerusalem worth"?
The Muslim after careful thought turns and answers "Nothing and then pauses and then says "Everything" and smiles.