

|   External Objects _____ We Form For Ourselves _____ Images or Symbols, Pictures
|         |                                          / [Signs, Brain States, Whatever]
|         |                                         /                  |
|         |                                        /                   |
|   [Natural Laws]          . . . Such That . . . /    [Logic, Mathematical Model]
|         |                /                                           |
|         |               /           