the clouds of error that envelope him; to guide him out of this Cretan
labyrinth, requires the clue of Ariadne, with all the love she could
bestow on Theseus. It exacts more than common exertion; it needs a most
determined, a most undaunted courage--it is never effected but by a
persevering resolution to act, to think for himself; to examine with
rigour and impartiality the opinions he has adopted. He will find that
the most noxious weeds have sprung up beside beautiful flowers; entwined
themselves around their stems, overshadowed them with an exuberance of
foliage, choaked the ground, enfeebled their growth, diminished their
petals; dimmed the brilliancy of their colours; that deceived by their
apparent freshness of their verdure, by the rapidity of their
exfoliation, he has given them cultivation, watered them, nurtured them,
when he ought to have plucked out their very roots.

Man seeks to range out of his sphere: notwithstanding the reiterated
checks his ambitious folly experiences, he still attempts the
impossible; strives to carry his researches beyond the visible world;
and hunts out misery in imaginary regions. He would be a metaphysician
before he has become a practical philosopher. He quits the contemplation
of realities to meditate on chimeras. He neglects experience to feed on
conjecture, to indulge in hypothesis. He dares not cultivate his reason,
because from his earliest days he has been taught to consider it
criminal. He pretends to know his date in the indistinct abodes of
another life, before he has considered of the means by which he is to
render himself happy in the world he inhabits: in short, man disdains
the study of Nature, except it be partially: he pursues phantoms that
resemble an _ignis-fatuus_, which at once dazzle, bewilders, and
affright: like the benighted traveller led astray by these deceptive
exhalations of a swampy soil, he frequently quits the plain, the simple
road of truth, by pursuing of which, he can alone ever reasonably hope