Individual agency is necessary for the possibility of rhetoric, and especially for deliberative rhetoric, which enables the composition of what Latour calls a good common world. Drawing on neurophenomenology, this essay defines individual agency as the process through which organisms create meanings through acting into the world and changing their structure in response to the perceived consequences of their actions. Conceiving of agency in this way enables writers to recognize their rhetorical acts, whether conscious or nonconscious, as acts that make them who they are, that affect others, and that can contribute to the common good. Responsible rhetorical agency entails being open to and responsive to the meanings of concrete others, and thus seeing persuasion as an invitation to listeners as also always agents in persuasion. (Contains 21 notes and 3 figures.)