"In med school I learned that cancer arrives in the body unannounced, a dark stranger who takes up residence, turning its new home against itself. This is the evil of cancer, that it starts as an invader, but soon becomes one with the invaded, forcing you to destroy it, but only at the risk of destroying yourself. It is science's demon possession. My treatment, science's attempt at exorcism. Mulder, I hope that in these terms you might know it and know me, and accept this stranger that so many recognize but cannot ever completely cast out. And if the darkness should have swallowed me as you read this, you must never think there was the possibility of some secret intervention, something you might have done. And though we've traveled far together, this last distance must neccessarily be traveled alone."
"I have not written to you in the last 24 hours because the treatment has weakened my spirit as well as my body. Mulder, it's difficult to describe to you the fear of facing an enemy which I can neither conquer nor escape. Penny Northern has taken a downturn. I now look at her with a respect that can only come from one who is about to walk the same dark path. Seeing her I can't help but see myself in a month or a year. I pray that I have her courage to face this journey. Mulder, I feel you close though I know you are now pursuing your own path. For that I am grateful, more than I could ever express. I need to know that you are out there if I am ever to see through this."