@article {Heath:June 2008:0031-8868:243,
	author = "Heath, Malcolm",
	title = "Aristotle on Natural Slavery",
	journal = "Phronesis: A journal for Ancient Philosophy",
	volume = "53",
	year = "June 2008",
	abstract = "Aristotle's claim that natural slaves do not possess autonomous rationality (<I>Pol</I>. 1.5, 1254b20-23) cannot plausibly be interpreted in an unrestricted sense, since this would conflict with what Aristotle knew about non-Greek societies. Aristotle's argument requires only a lack of autonomous practical rationality. An impairment of the capacity for integrated practical deliberation, resulting from an environmentally induced excess or deficiency in <I>thumos</I> (<I>Pol</I>. 7.7, 1327b18-31), would be sufficient to make natural slaves incapable of <I>eudaimonia</I> without being obtrusively implausible relative to what Aristotle is likely to have believed about non-Greeks. Since Aristotle seems to have believed that the existence of people who can be enslaved without injustice is a hypothetical necessity, if those capable of <I>eudaimonia</I> are to achieve it, the existence of natural slaves has implications for our understanding of Aristotle's natural teleology.",
	pages = "243-270(28)",
	url = "http://www.ingentaconnect.com/content/brill/phr/2008/00000053/00000003/art00002"
	doi = "doi:10.1163/156852808X307070"
}