Sawaki is a known Zen Master. He didn't write texts on his own; his books are just quotes collected by his students. The internet is full with information on him.
Stephan Uhrenbacher is linked in the original blog post: http://www.grobmeier.de/the-10-rules-of-a-zen-programmer-030...
The "10 rules" post is the beginning, not the end.
Here's one excerpt
Kôdô Sawaki says: if you need to sleep, sleep. Don’t plan your software when you are trying to sleep. Just sleep. If you code, code. Don’t daydream—code. If you are so tired that you cannot program, sleep. Even known multitaskers like Stephan Uhrenbacher have decided to work singlethreaded
Who's Sawaki? Who's Uhrenbacher? This is what I mean by missing context. Now that I think about it, some of the criticism (mine included) may be due to the fact that you picked the final chapter to represent a sample. You pretty much gave away the ending, and we have no clue how you got there.