Martha C. Nussbaum's "Duties of Justice, Duties of Material Aid: Cicero's Problematic Legacy"
Read this condensed version of Nussbaum's lecture. Here, Nussbaum offers an account of the history of the problem of material aid through the work of Cicero. She comes to the conclusion that we cannot be satisfied "with his evasions" and must continue to work towards a more economically just international order.
Click http://web.archive.org/web/20110104172556/https://www.amacad.org/blvlivn3/blvlivn3_38.aspx link to open resource.