Editing Normative ethics (section)

==References==
{{Reflist|refs=
<ref name= FootHypo>Foot, Philippa. (2009). Morality as a System of Hypothetical Imperatives. In S. M. Cahn, & P. Markie, Ethics: History, Theory, and Contemporary Issues (pp. 556-561). New York: Oxford University Press.</ref>
<ref name=MillChap3>{{cite web| url = http://utilitarianism.org/mill3.htm| title = John Stuart Mill (1863). Utilitarianism. Chapter 3: Of the Ultimate Sanction of the Principle of Utility.}}</ref>
}}