106 THEARCHITECTURE OFHUMANISM
fromthepointofviewofart,theelementofbeautyis indispensable, while the element of constructiverationalityisnot. Theconstruction
of
abuilding,itmightconceivablybesuggested,issimplyautilitariannecessity,andexistsfor
artonlyasabasisor
meansfor creating
beauty, somewhatas
pigments andcanvasexistforthepainter. Insecurestructures,likefadingpigments,aretechnicalfaultsofart
;all
otherstructuralconsiderations
are,forthepurposesofart,irrelevant.And architecturalcriticism, insofaras
itapproachesthe
subjectasanart,oughtperhapstotakethisview.T^But there thescientific criticismshould
certainly
haveitsreply. Granting,
itwillsay,thatbeautyisa more essential
quality in good architecture thanconstructive rationality, and that
the twoelementscannotbeidentified,and
admittingthatthecriticismof
architecturalartshouldacceptthispointofview,there is stillafurther consideration. It willclaimthat architectural
beauty,thoughdifferentfromthesimple
idealofengineering,isstillbeautyojstructure,and, as such, different from
pictorial ormusigalbeauty: thatitdoes
not resideinpatternsoflightand
shade, or even in the agreeable disposition ofmasses,butinthe
structure,inthe visiblerelationsofforces.Theanalogybetweenconstructionandthe
merematerialbasisof
thepainter'sart,itwillsay,isfalse:wetakenodelightintheway
apainterstretches'