way that the dreamer could appreciate and understand, while he continued
to dream. This is because that dream-world and the waking world present
two disjointed landscapes, and the figures they contain belong to quite
different genealogies--like the families of Zeus and of Abraham. Science
is a great disciplinarian, and misses much of the sport which the
absolute is free to indulge in. If there is no inner congruity and
communion between two fields, science cannot survey them both; at best
in tracing the structure of things presented in one of them, it may come
upon some detail which may offer a basis or lodgment for the entire
fabric of the other, which will thus be explained _ab extra_; as the
children of Abraham might give an explanation for Zeus and his progeny,
treating them as a phenomenon in the benighted minds of some of Japhet's
children.

This brings the Olympian world within the purview of science, but does
so with a very bad grace. For suppose the Olympian gods really
existed--and there is nothing impossible in that supposition--they would
not be allowed to have any science of their own; or if they did, it
would threaten the children of Abraham with the same imputed unreality
with which the latter boast to have extinguished Olympus. In order,
then, that two regions of existence should be amenable to a science
common to both and establishing a mutual rational representation between
them, it is requisite that the two regions should be congruous in
texture and continuous inwardly: the objects present in each must be
transformations of the objects present in the other. As this condition
is not always fulfilled, even within a man's personal fortunes, it is
impossible that all he goes through should be mastered by science or
should accrue to him ideally and become part of his funded experience.
Much must be lost, left to itself, and resigned to the unprofitable
flux that produced it.

[Sidenote: Sciences converge from different points of origin.]

A consequence of this incoherence in experience is that science is not
absolutely single but springs up in various places at once, as a certain
consistency or method becomes visible in this or that direction. These
independent sciences might, conceivably, never meet at all; each might
work out an entirely different aspect of things and cross the other, as
it were, at a different level. This actually happens, for instance, in
mathematics as compared with history or psych