I'm writing about my 5 favorite unix design principles on my blog this week, and it got me wondering what others' favorite unix design principles are? For reference, mine are:

- Rule of Separation (from TAOUP)

- Let the Machine Do the Dirty Work (from Elements of Programming Style)

- Rule of Silence (from TAOUP)

- Data Dominates (Rob Pike #5)

- The SPOT (Single Point of Truth) Rule (from TAOUP)