Visualize a picture of an apple, one side green,
other, red
Connect by lines—how else?
Look at a lecturer who gestures lineal
connections in air, a teacher with chalk in hand
Arrange facts in an upward slant, parallel or
converging
Arrange geographically, lines of diffusion,
statistical facts reduced to a normal curve
All would be lost without diagrams
Trace history down to the present, up from the
ape
Picture motivation as external through entering
the organism—emerging transformed
Line is inescapable
We are incapable of questioning the reality of its
presence
(Thanks to Freedom and Culture by Dorothy Lees)