It is disagreeable for me to recall and write these things, but I
set them down that my story may lack nothing.  Those who have escaped
the dark and terrible aspects of life will find my brutality, my flash
of rage in our final tragedy, easy enough to blame; for they know what
is wrong as well as any, but not what is possible to tortured men.  But
those who have been under the shadow, who have gone down at last to
elemental things, will have a wider charity.