THE BIOLOGICAL
FALLACY 185
moment,and
developedparipassuwithcreativeart.
Nogiftofimaginativeflexibilitywasrequired. But
fora modem criticism, which claims tojudge with
animpartialeyethewholesequenceofarchitectural
history,orevenofonesingle
'
style,'
thatgift,before
allothers,isdemanded. Thedifferentsestheticpur-
poses possible to architecture are not necessarily
equallyworthy
;
butbeforetheirworth
can
be
estim-
ated
itisnecessaryatleastthattheyshouldberightly
distinguishedanddefined. Ahistoricaldefinitionof
architecture which tracesthe outward
development
of
formfromformwillnotofitselfsupplytheneeded
definitionsofaesthetic
purpose. Itwillfailtostrike
the right divisions
;
it will be too
unsubtle, too
summary, too
continuous. It will be intellectually
simplebutaestheticallyunjust.
Criticismbasedonhistoricevolution
cannomore
affordashortcutto
theproblemoftastethancriticism
thatisbasedonromanticformulas
oronmechanical
formulas
or
onethical formulas. Itis but
another
caseoffalsesimplification
: anotherexampleofthe
impatienceoftheintellectinthe
presenceofaliving
functionthat disowns
the intellect'sauthority.