THE
ACADEMIC TRADITION
193
substancetoworkupon,aformtoalterorpreserve,
a base upon which, when inspiration
flags, it may
retire. Solongasarchitecturalartwascloselylinked
to utility and toconstruction, these ofthemselves
providedthepermanentelementit
required. Greek
architecturehadonthewholeobservedthelogicof
the temple, Gothic the logic of the vault. The
restrictions which these constructive principles im-
posed,theformswhichtheyhelped tosuggest,were
sufficientfordesign. Butwhenarchitecture,
inthe
Renaissance,baseditselfon anexperimentalscience
oftaste,
andrefusedallextraneoussanctions, itfelt
for the first time the
embarrassment of liberty.
Baroque art,assoon asthe creativeenergydeserts
it,hasnothingto
fallbackupon. It thenbecomes
(as its failures prove) an unmeaning
and aimless
force,
'
bombinansinvacuo.'
Architecture,therefore,
havingdeniedtheabsolute
authority ofuse and construction to
determine its
design,wasledto
createanewauthority
indesign
itself. And since Humanism,
with its worship of
power,hadexalted
Rometoanideal,it
wasnaturally
in Roman design that
this authority was
sought.
Roman buildings had to provide
not merely
an
inspiration,butarule.
Thusthemereaesthetic
necessitiesof
thecasewere
sufficient tolead
thetentative
classicismofBrvmel-
leschi
towardsthe
stricter
mannerof
Bramante,
and
N