I love wiki. I spend hours following links. Having loops is a feature or else I ...

I love wiki. I spend hours following links. Having loops is a feature or else I might never stop.

Greek City States ->

  Polis
  City
  Human settlement
  Statistics
  Data
  Level of measurement
  Stanley Smith Stevens
  United States
  Federalism
  Politics
  Art
  Human behavior
  Behavior
  Organism
  Biology
  Natural science
  Science
  Knowledge
  Fact
  Proof (truth)
  Argument
  Philosophy
  Problem
  Doubt
  Belief
  Proposition loops to Philosophy