Animal rights the interests of the worse off more important than those of the better off. Another approach, virtue ethics, holds that in considering how to act we should consider the character of the actor, and what kind of moral agents we should be. Rosalind Hursthouse has suggested an approach to animal rights based on virtue ethics. Mark Rowlands has proposed a contractarian approach. Nussbaum (2004) writes that utilitarianism, starting with Jeremy Bentham and John Stuart Mill, has contributed more to the recognition of the moral status of animals than any other ethical theory. The utilitarian philosopher most associated with animal rights
An Introduction to the Principles of Morals and Legislation intensity, its duration, its degree of certainty, its propinquity or remoteness, its fecundity (i.e., its tendency to produce further pleasures or pains), its purity (i.e., whether it is purely pleasurable or painful, or is mixed with its opposite), and its extent (i.e., the number of persons to whom it extends). An Introduction to the Principles of Morals and Legislation An Introduction to the Principles of Morals and Legislation is a book by the English philosopher and legal theorist Jeremy Bentham "originally printed in 1780, and first published in 1789." Bentham's "most important theoretical work," it is where Bentham develops his