As I have before said, the applicability of a method for determining right conduct relatively to an ultimate end---whether Happiness or Perfection---does not necessarily depend on the acceptance of the end as prescribed by reason: it only requires that it should be in some way adopted as ultimate and paramount. I have, however, confined my attention in this treatise to ends which are widely accepted as reasonable: and I shall afterwards endeavour to exhibit the self-evident practical axioms which appear to me to be implied in this acceptance. Cf. post, Book iii. chap. xiii.