hidden mines: we applied much prolonged labour on investigating the
magnetical forces; so wonderful indeed are they, compared with the forces
of all other minerals, surpassing even the virtues of all other bodies
about us. Nor have we found this our labour idle or unfruitful; since daily
during our experimenting, new and unexpected properties came to light; and
our Philosophy hath grown so much from the things diligently observed, that
we have attempted to expound the interior parts of the terrene globe, and
its native substance, upon magnetick principles; and to reveal to men the
earth (our common mother), and to point it out as if with the finger, by
real demonstrations and by experiments manifestly apparent to the senses.
And as geometry ascends from sundry very small and very easy principles to
the greatest and most difficult; by which the wit of man climbs above the
firmament: so our magnetical doctrine and science first sets forth in
convenient order the things which are less obscure; from these there come
to light others that are more remarkable; and at length in due order there
are opened the concealed and most secret things of the globe of the earth,
and the causes are made known of those things which, either through the
ignorance of the ancients or the neglect of moderns, have remained
unrecognized and overlooked. But why should I, in so vast an Ocean of Books
by which the minds of studious men are troubled and fatigued, through which
very foolish productions the world and unreasoning men are intoxicated, and
puffed up, rave and create literary broils, and while professing to be
philosophers, physicians, mathematicians and astrologers, neglect and
despise men of learning: why should I, I say, add aught further to this
so-perturbed republick of letters, and expose this noble philosophy, which
seems new and incredible by reason of so many things hitherto unrevealed,
to be damned and torn to pieces by the maledictions of those who are either
already sworn to the opinions of other men, or are foolish corruptors of
good arts, learned idiots, grammatists, sophists, wranglers, and perverse
little folk? But to you alone, true philosophizers, honest men, who seek
knowledge not from books only but from things themselves, have I addressed
these magnetical principles in this new sort of Philosophizing. But if any
see not fit to assent to these self-same opinions and paradoxes, let them
nevertheless mark the great array of ex