Circles and squares have always been symbolic shapes of order, embodying the purity, the beauty of an immanent law, witnessing the unity of nature and works of man as creations made by human beings. An inner correlation of thought and form conveys this effect. The circle is the most secluded shape. Its curvature always remains the same, nothing remains to be said, it reaches out multilaterally, creating an enclosed space, as void of direction as the outside, which seems completely open and undefined. The circle denies all bonds with other shapes, thus constituting the epitome of elementary shapes.
from „Circles – Katrin Süss" by Dr. Ullrich Hartung