§ XVIII. These four rules are all that are necessary for general criticism; and observe that these are only semi-imperative, rules of permission, not of compulsion. Thus Law 1 asserts that the slender shaft may have greater excess of capital than the thick shaft; but it need not, unless the architect chooses; his thick shafts must have small excess, but his slender ones need not have large.

Good manners and correct motor form generally, as well as skill, are the most economic ways of doing things; but this is the age of wasteful ways, awkwardness mannerisms, tensions that are a constant leakage of vital energy, perhaps semi-imperative acts, contortions, quaint movements, more elaborated than in childhood and often highly anesthetic and disagreeable, motor cooerdinations that will need laborious decomposition later.