It would probably be the case, that the supporters of misery, as an end, would be at some point inconsistent with themselves; which would lay them open to refutation.

But to any one consistently maintaining the position, there is no possible reply, because there is no medium of proof.
If then, it appears, on making the appeal to mankind, that happiness is admitted to be the highest end of all action, the theory of Utility is proved.
9.

The judgment of Mankind is very generally in favour of Happiness, as the Supreme end of human conduct, Morality included.
This decision, however, is not given without qualifications and reservations; nor is there perfect unanimity regarding it.
The theory of Motives to the Will is the answer to the question as to the ends of human action.

According to the primary law of the Will, each one of us, for ourselves, seeks pleasure and avoids pain, present or prospective.

The principle is interfered with by the operation of Fixed Ideas, under the influence of the feelings; whence we have the class of Impassioned, Exaggerated, Irrational Motives or Ends.