Unity. ...Unity of purpose is shown by continuity, or the proper relationship of the parts with each other, and with the whole as one sees it best ex… - Ernest Flagg

5th. Savings by the use of more economical devices, materials, and methods: (a) in the matter of roof-covering... (b) in heating and plumbing drainage... (c) in hardware... (d) in use of tiling... (e) in the use of cement... (f) in the matter of damp-proofing... (g) in the method of flashing... (h) in the preparation of floors for tiling... (i)in the construction of bearing partitions... (j) in the arrangement of screens and shades... (k) in the avoidance of excavation and grading by adapting the building to the conformation of the land... (l) in the more economical use of land by the European method of placing the buildings at the side of the road... (m) in furring... and (n) in the standardization of methods by which the work of construction becomes simply a matter of routine in which each mechanic can perform his part without special direction.

Refinement. While the possession of this quality is due, in the first instance, to education, it is also largely a matter of temperament.

It was only within comparatively recent times that several refinements in Greek architecture... such as the slight entasis of the columns, the greater size of the corner columns, and the convex curve of the stylobate were discovered.