Both systems are liable to objections. Against the scheme of Pleasure,
it is urged that we never, in fact, identify virtue as merely useful.
Against the scheme of Virtue, it is maintained that virtue is a matter
of opinion, and that Conscience varies in different ages, countries,
and persons. It is necessary that a scheme of Morality should surmount
both classes of objections; and the author therefore attempts a
reconciliation of the two opposing theories.
