Seriously Zen. Topics include:

1. Focus
2. Keep your mind clean
3. Beginners mind
4. No ego
5. There is no career goal
6. Shut up
7. Mindfulness. Care. Awareness
8. There is no boss
9. Do something else
10. There is nothing special

I already see myself improving from some of these values.

Source: The 10 Rules of a Zen Programmer