120 THE ARCHITECTURE
OF HUMANISM
donotexpressthemselvesinour terms,i They
arg^notpowerfuloverusfordelight.^^.^u^S*iXid
Inproportion asthese differences became
'distin-!guished,theartofarchitecturewasbound
todetach/itself frommechanical science.The
art
of archi-^tecturestudies notstructureinitself, butthe
effectof structureon the human spirit. Empirically,
byintuition and example, it learns where to discard,wheretoconceal,wheretoemphasise,and
wheretoimitate, the facts of construction. It creates, bydegrees, ahumanised dynamics. For
that task,constructive scienceis a usefulslave,
and perhapsa natural ally, but certainly ablind master.
Thebuilders
oftheRenaissancegavearchitecture
forthefirst time a whollyconscious
liberty of aim, andreleaseditfrommechanicalsubservience. To
recalltheartofarchitecturetothatobedienceistoreversea natural process, and cast away its opportunity.
The Mechanical Fallacy, in its zeal for structure,
refuses,inthearchitectureoftheRenaissance,an
artwhere structure is raised
to theideal.
It looks inrpoetryforthesyntaxofanakedprose.