[MD] Reading & Comprehension

[ARLO J BENSINGER JR]

[Marsha]
Ooops.  That would be:  I've seen NO evidence to the contrary.  

[Arlo]
Right. As I said, you are staring at one tree and calling it the forest. Why
would it be a surprise to hear you say you've never seen another tree?

Pirsig: The patient has cancer.
Marsha: The patient IS cancer, since all I see when looking in my microscope
are cancer cells, therefore I've seen no evidence that the patient is anything
other than cancer.