Bibliography
- Baltzly, Dirk. "Stoicism." The Stanford Encyclopedia of Philosophy. Edited by Edward N. Zalta. Spring 2008.
- Inwood, Brad, editor. The Cambridge Companion to the Stoics. Cambridge University Press, 2003. ISBN 0-521-77985-5
- Sedley, David. "Stoic Physics and Metaphysics." The Cambridge History of Hellenistic Philosophy. Cambridge University Press, 2005.
- "Stoicism." Routledge Encyclopedia of Philosophy, vol. 9. Taylor & Francis, 1998. ISBN 0-415-07310-3
- Sellars, John. Stoicism. University of California Press, 2006. ISBN 0-520-24907-0
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