The cancer of time is eating us away. (1.3)
Well, this is pretty straightforward. And pretty grim, too. Right off the bat, we're introduced to Henry's cynical side. He just doesn't care for time and all of the control it involves. His rule of thumb? Stop paying attention to all that nonsense and just be.
The world is a cancer eating itself away. (1.8)
Looks like the world isn't faring so well either. Henry believes that's because people have just stopped caring about things like creativity and free expression. Instead, they've gotten all wrapped up in productivity and making moola.
[Carl and Boris] are possessed. They glow inwardly with a white flame. They are mad and tone deaf. They are sufferers. (1.15)
Henry definitely abides by the artist as sufferer motif. It's no surprise that he thinks the best sufferers are also the best writers.