Of all the aspects I have illustrated thus far, Wisdom is
perhaps the most difficult to define. It is a somewhat intangible concept, ideas
about it always varying slightly from person to person. Yet it is often linked
to such notions such as Peace, Calm, Tranquility and Scholarship. In turn,
these elements are associated with the psychological effects of the colours
blue and white, so that it was fitting to use them in the design of the last
three characters.
Author John Gage states: "Interpretation is predicated
on the meanings attributed to the colours. Thus blue, which Max Luscher, like
most modern psychologists has identified as the most widely preferred colour
among Europeans, is held to be concentric, passive, sensitive, perceptive,
unifying and so on."[34]