  The critical discussion of Section 2 above has supplemented the Section 1 consideration of psychological hedonism, by examining arguments both for and against ethical hedonism. On one influential view that John Rawls attributes to Henry Sidgwick, justification in ethics ideally proceeds against “standards of reasoned justification… carefully formulated”, and “satisfactory justification of any particular moral conception must proceed from a full knowledge and systematic comparison of the more significant conceptions in the philosophical tradition” (editor's ‘Foreword’ to Sidgwick). This entry has not attempted any such systematic comparative examination of psychological hedonism or ethical hedonism against its main rivals.