Supposing that I should have the courage
To let a red sword of virtue
Plunge into my heart,
Letting to the weeds of the ground
My sinful blood,
What can you offer me?
A gardened castle?
A flowery kingdom?

What? A hope?
Then hence with your red sword of virtue.

Stephen Crane

http://www.poemhunter.com/poem/supposing-that-i-should-have-the-courage-2/