We cannot be too much upon our guard against fraud and imposition of
every kind; and prudence in many cases would rather counsel us to
forego some advantages, than endeavour to gain them at a risk of which
we cannot certainly ascertain the amount. We should more particularly
suspect some design in the professions of those who have once injured
us; and though they may promise fairly for the future, it is no breach
of charity to doubt their sincerity, and decline their proposals,
however plausible they may appear; for experience shews that many of
the misfortunes which we experience through life, are caused by our own
too great credulity.
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