Every man that is solicitous about the esteem of others, is, in a great
degree, desirous of his own, and makes, by consequence, his first
apology for his conduct to himself; and when he has once deceived his
own heart, which is, for the greatest part, too easy a task, he
propagates the deceit in the world, without reluctance or consciousness
of falsehood.

But to what purpose, it may be asked, are such reflections, except to
produce a general incredulity, and to make history of no use? The man
who knows not the truth cannot, and he who knows it, will not tell it;
what then remains, but to distrust every relation, and live in perpetual
negligence of past events; or, what is still more disagreeable, in
perpetual suspense?

That by such remarks some incredulity is, indeed, produced, cannot be
denied; but distrust is a necessary qualification of a student in
history. Distrust quickens his discernment of different degrees of
probability, animates his search after evidence, and, perhaps, heightens
his pleasure at the discovery of truth; for truth, though not always
obvious, is generally discoverable; nor is it any where more likely to
be found than in private memoirs, which are generally published at a
time when any gross falsehood may be detected by living witnesses, and
which always contain a thousand incidents, of which the writer could not
have acquired a certain knowledge, and which he has no reason for
disguising.

Such is the account lately published by the dutchess of Marlborough, of
her own conduct, by which those who are very little concerned about the
character which it is principally intended to preserve or to retrieve,