Ancient traditions, when tested by the severe processes of modern
investigations, commonly enough fade away into mere dreams: but it is
singular how often the dream turns out to have been a half-waking one?
presaging a reality. Ovid foreshadowed the discoveries of the geologist:
the Atlantis was an imagination, but Columbus found a western world: and
though the quaint forms of Centaurs and Satyrs have an existence only
in the realms of art, creatures approaching man more nearly than they
in essential structure, and yet as thoroughly brutal as the goat's
or horse's half of the mythical compound, are now not only known, but
notorious.