The primary aim of the edition is to present fully collated texts of those works which exist in a number of versions, both printed and manuscript, and to provide accurate texts of those works previously unpublished or which have become relatively inaccessible. The series is complete.
John Stuart Mill, English philosopher, political economist, civil servant and Member of Parliament, was an influential liberal thinker of the 19th century. He was an exponent of utilitarianism, an ethical theory developed by Jeremy Bentham, although his conception of it was very different from Bentham's.