A book about the Unix Way and its power, http://mercury.ccil.org/~cowan/upc/

The route you can traverse
  isn't a static route.
The name you can dereference
  isn't a universal name.

Namelessness is the root of everything.
Names are the mother of everything.

Therefore,
  the unchanging, seen from outside the box,
    reveals its inner nature;
  the unchanging, seen from inside the box,
    reveals its outer form.

These two are alike in origin,
  but different in name.
Their unity is called "the mystery".

Mystery of all mysteries,
  the gate to all wonders.