A. D. M. Walker. ‘Obligations of Gratitude and Political Obligation’. Philosophy & Public Affairs 18.4 (1989): 359–364. Web. <http://www.jstor.org/stable/2265477>.
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Descartes, René, and F. E. Sutcliffe. ‘“First Meditation” from Discourse on Method, and the Meditations: [By] Descartes ; Translated with an Introduction by F.E. Sutcliffe: P 59-63’. Penguin classics. Harmondsworth: Penguin, 1968. Print.
Dewey, John. ‘“Experience and Philosophic Method” from Experience and Nature: P 1-39’. New York: Dover Publications, 1958. Web. <http://ebookcentral.proquest.com/lib/uea/detail.action?docID=1890052>.
Frege, Gottlob et al. ‘“On Sense and Reference” from Translations from the Philosophical Writings of Gottlob Frege: P 36-56’. 3rd ed. Oxford: Blackwell, 1980. Print.
George Klosko. ‘Four Arguments against Political Obligations from Gratitude’. Public Affairs Quarterly 5.1 (1991): 33–48. Web. <http://www.jstor.org/stable/40435768>.
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Grube, G. M. A., John M. Cooper, and Plato. ‘“Crito” from Five Dialogues’. 2nd ed. Indianapolis: Hackett, 2002. Web. <http://ebookcentral.proquest.com/lib/uea/detail.action?docID=473611>.
Harry G. Frankfurt. ‘The Anarchism of Robert Paul Wolff’. Political Theory 1.4 (1973): 405–414. Web. <http://www.jstor.org/stable/191060>.
Heil, John, and John Heil. ‘“Psychological Predicates” from Philosophy of Mind: A Guide and Anthology: P 158-167’. Oxford: Oxford University Press, 2004. Print.
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Martinich, Aloysius, and David Sosa, eds. The Philosophy of Language. Sixth international edition. New York: Oxford University Press, 2013. Print.
McGilvray, James A. ‘“Meaning and Creativity” from The Cambridge Companion to Chomsky: P 2014-222’. Cambridge: Cambridge University Press, 2005. Web. <https://www.cambridge.org/core/books/cambridge-companion-to-chomsky/447FDE905B402DA2433C4712496B90F4>.
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Simmons, A. John. ‘Chapter 7 [in] Moral Principles and Political Obligations’. Moral Principles and Political Obligations. Princeton: Princeton University Press, 1979. Print.
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Soames, Scott. ‘Chapter 1’. Philosophy of Language. Princeton foundations of contemporary philosophy. Princeton, N.J.: Princeton University Press, 2010. Web. <https://ebookcentral.proquest.com/lib/uea/detail.action?docID=565419>.
Stroud, Barry. ‘Chapter 1 from The Significance of Philosophical Scepticism: P 1-38’. Oxford: Clarendon, 1984. Web. <http://ebookcentral.proquest.com/lib/uea/detail.action?docID=3053315>.
Williams, Michael. ‘Chapter 5 from Problems of Knowledge: A Critical Introduction to Epistemology: P 58-68.’ Oxford: Oxford University Press, 2001. Print.
Wolff, Jonathan. ‘Anarchism and Skepticism [in] For and against the State: New Philosophical Readings’. For and against the State: New Philosophical Readings. Lanham, Md: Rowman & Littlefield, 1996. Web. <http://uea.eblib.com/patron/FullRecord.aspx?p=1331688>.
Wolff, Robert Paul. ‘The Conflict between Authority and Autonomy [in] In Defense of Anarchism’. In Defense of Anarchism. Harper essays in philosophy. New York: Harper Colophon Books, 1976. Print.
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