gained by grouping disparate things
in their historical conjunctions. These contiguous sensations, which
occasionally exemplify the logical contrasts in ideas and give them
incidental existence, were either ignored altogether and dismissed as
unmeaning, or admitted merely as illusions. The eye was to be trained to
pass from that parti-coloured chaos to the firm lines and permanent
divisions that were supposed to sustain it and frame it in.

Rationalism is a kind of builder's bias which the impartial public
cannot share; for the dead walls and glass screens which may have no
function in supporting the roof are yet as needful as the roof itself to
shelter and beauty. So the incidental filling of experience which
remains unclassified under logical categories retains all its primary
reality and importance. The outlines of it emphasised by logic, though
they may be the essential vehicle of our most soaring thoughts, are only
a method and a style of architecture. They neither absorb the whole
material of life nor monopolise its values. And as each material imposes
upon the builder's ingenuity a different type of construction, and
stone, wood, and iron must be treated on different structural
principles, so logical methods of comprehension, spontaneous though they
be in their mental origin, must prove themselves fitted to the natural
order and affinity of the facts.[B] Nor is there in this necessity any
violence to the spontaneity of reason: for reason also has manifold
forms, and the accidents of experience are more than matched in variety
by the multiplicity of categories. Here one principle of order and there
another shoots into the mind, which breeds more genera and species than
the most fertile terrestrial slime can breed individuals.

[Sidenote: Complementary character of essence and existence.]

Language, then, with the logic imbedded in it, is a repository of terms
formed by identifying successive perceptions, as the external world is a
repository of objects conceived by superposing perceptions that exist
together. Being formed on different principles these two orders of
conception--the logical and the physical--do not coincide, and the
attempt to fuse them into one system of demonstrable reality or moral
physics is doomed to failure by the very nature of the terms compared.
When the Eleatics proved the impossibility--_i.e._, the
inexpressibility--of motion, or when Kant and his followers proved the
unreal character