ii8 THE
ARCHITECTURE OF HUMANISM]]
attempted something
different from what he didattempt, then the dome of St.
Peter's may
inducenothingbut
anintellectualirritation. Butthen,thisattitudetoarchitecture,carried
toitslogical
results,ignores
its character as an art altogether, and re-ducesitsimplytoengineering
;andwehave
alreadydemonstrated the reductio ad absurdum which that
involves.Thusvanishestheargumentfromstructure. Theprestige which still,in all ourthought, attaches
tomechanical considerations, has given tosoweakacase aperversevitality. Onecentralpointshould,
however,beclearfromthisanalysis.
Itmay
bere-stated in conclusion, for it is important.jTwosensesof'structure' havebeenentangledandcon-fused. Structure,inonesense,isthescientificmethodof'well-building.' Itsaimis'firmnessJ Itsendisachieved when once the stability ofarchitectureisassured. And anymeans tothat endare,scientifi-
cally, justified in proportion to their effectiveness.Structure,butnowinadifferentsense,isalsothebasis
ofarchitectural'delight' Forarchitecture,realisedaesthetically,isnotmerelineorpattern. Itisanartinthreedimensions,
withalltheconsequenceofthat.Itis an art of spacesand ofsolids, a feltrelationbetweenponderable
things, an adjustmentto oneanother of evident forces, a grouping ofmateriarbodies subject like ourselves
tocertain elementary