they have remarked in the kind in vogue up to the present time, that
they cannot apply themselves to the search after truth.

But, in conclusion, if the difference discernible between the
principles in question and those of every other system, and the
great array of truths deducible from them, lead them to discern the
importance of continuing the search after these truths, and to
observe the degree of wisdom, the perfection and felicity of life,
to which they are fitted to conduct us, I venture to believe that
there will not be found one who is not ready to labour hard in so
profitable a study, or at least to favour and aid with all his might
those who shall devote themselves to it with success.

The height of my wishes is, that posterity may sometime behold the
happy issue of it, etc.



TO THE MOST SERENE PRINCESS,

ELIZABETH, ELDEST DAUGHTER OF FREDERICK, KING OF BOHEMIA, COUNT
PALATINE, AND ELECTOR OF THE SACRED ROMAN EMPIRE.

MADAM,--The greatest advantage I have derived from the writings
which I have already published, has arisen from my having, through
means of them, become known to your Highness, and thus been
privileged to hold occasional converse with one in whom so many rare
and estimable qualities are united, as to lead me to believe I
should do service to the public by proposing them as an example to
posterity. It would ill become me to flatter, or to give expression