The struggles which different passions occasion in the human breast,
are here exemplified; and that there is no one among them so strong,
but may be extirpated by another, excepting _revenge_, which knows no
period, but by gratification, Page 185.


CHAP. IV.

Contains a further definition of _revenge_, its force, effects, and
the chasm it leaves on the mind when once it ceases. The tranquility
of being entirely devoid of all passions; and the impossibility for
the soul to remain in that state of inactivity is also shewn; with
some remarks on human nature in general, when left to itself, Page
190.


CHAP. V.

Contains a remarkable proof, that tho' the passions may operate with
greater velocity and vehemence in youth, yet they are infinitely more
strong and permanent, when the person is arrived at maturity, and are
then scarce ever eradicated. Love and friendship are then, and not
till then, truly worthy of the names they bear; and that the _one_
between those of different sexes, is always the consequence of the
_other_, Page 206.


CHAP. VI.