The Impossible Dream, from The Man of La Mancha

I heard this piece done by the Lehman College Community Band at a 9/11 memorial concert, maybe in 2003 or 2004. There are a few lyrics to this song appropriate to memorialize the day:
"To bear with unbearable sorrow..."
"To right the unrightable wrong"
However, the line that strikes me the most is "To be willing to march into hell for a heavenly cause".
What could better describe the first responders that day, as well as the men and women of the armed services that risk their lives everyday to keep the rest of us safe.

Lynn Merklinger