You know what the doctor said to me to cheer me up?" Fat said. "There are worse diseases than cancer." "Did he show you slides?" We both laughed. When you are nearly crazy with grief, you laugh at what you can.

You will be required to do wrong no matter where you go. It is the basic condition of life, to be required to violate your own identity. At some time, every creature which lives must do so. It is the ultimate shadow, the defeat of creation; this is the curse at work, the curse that feeds on all life. Everywhere in the universe.

Fat realized that one of two possibilities existed and only two; either Dr. Stone was totally insane – not just insane but totally so – or else in an artful, professional fashion he had gotten Fat to talk; he had drawn Fat out and now knew that Fat was totally insane.

You're - psychotic. There's something wrong with you." "I know," Benteley agreed. "I'm a sick man. And the more I see, the sicker I get. I'm so sick I think everybody else is sick and I'm the only healthy person. That's pretty bad off, isn't it?

Perhaps if you know you are insane then you are not insane. Or you are becoming sane, finally.

Reality denied comes back to haunt.

Basically, Sherri's idea had to do with bringing Fat's mind down from the cosmic and the abstract to the particular. She had hatched out the practical notion that nothing is more real than a large World War Two Soviet tank.