Moliere always shows us both sides of every human problem; and
Diderot, imitating him, once wrote, "This is not a mere tale"--in
what is perhaps Diderot's masterpiece, where he shows us the
beautiful picture of Mademoiselle de Lachaux sacrificed by
Gardanne, side by side with that of a perfect lover dying for his
mistress.

In the same way, these two romances form a pair, like twins of
opposite sexes. This is a literary vagary to which a writer may
for once give way, especially as part of a work in which I am
endeavoring to depict every form that can serve as a garb to mind.

Most human quarrels arise from the fact that both wise men and
dunces exist who are so constituted as to be incapable of seeing
more than one side of any fact or idea, while each asserts that
the side he sees is the only true and right one. Thus it is
written in the Holy Book, "God will deliver the world over to
divisions." I must confess that this passage of Scripture alone
should persuade the Papal See to give you the control of the two
Chambers to carry out the text which found its commentary in 1814,
in the decree of Louis XVIII.

May your wit and the poetry that is in you extend a protecting
hand over these two histories of "The Poor Relations"

Of your affectionate humble servant,

DE BALZAC.
PARIS, August-September, 1846.