It's a motivation for life itself..

"Soldiers,you must not be downhearted because of recent events.
I can assure you that there are as many advantages as disadvantages
in what has happened."
"My friends,these people
whom you see are the last obstacle
which stops us from being where we have so long struggled to be.
We ought, if we could,
to eat them up alive.
"From ANABASIS by Xenophon
Inspiration for "The Warriors"
