of general reasoning with chief regard to logical consist-
ency in the line of arguments, but in increasing the degree
the political man submits to the more objective tests of
actual observation of behaviour and to specific measure-
ment and analysis.

Using the new tools of survey and comparison, of sta-
tistics and psychology, the modern investigator is penetrat-
ing farther and farther into the recesses of that "human
nature," which for a long time stood guard at the end of
the world, barring the way to further discovery. Long ago
we ceased to believe that rulers governed because they were
the sons or blood relations of gods; or even that they ruled
by special divine right. "The mystery that doth hedge
about" a king has largely been dispelled, and with it the
lesser mysteries that were worn by the lesser lights around
the throne. It may still be assumed, however, that there
is some other kind of a mystery that surrounds a leader
of men, some magic that grows out of mysterious "human
nature," and defies human analysis and understanding.
Political leaders, some believe, are super-men, inscrutable,
insoluble types, to be accepted as in the earlier times earth-
quakes, volcanoes, storms, or other works of nature were
accepted.

"Human nature," however, is no more of a defense
against modern science than "divine right" in the earlier
period of human development, for the whole trend of mod-
ern social science is toward the discovery of the secrets or
rather the sequences of "human nature." We no longer
look upon the human beings who may be our masters with
superstitious awe, but rather with scientific curiosity as to
how they are constructed and how they operate, and with
determination to reduce the mysterious to its very lowest
terms. The "great man" is not merely a hero to be wor-
shipped, as if in some occult way endowed with semi-

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