Aristotle's Rhetoric: Plato's Legacy Continued?

In reading Aristotle's Rhetoric, it is important to note that many ideas about oratory encountered in Plato's Gorgias and Phaedrus reemerge. Aristotle, as Plato's student, has taken what he learned about oratory and expended upon it based on his experiences and studies. The main concern of both Aristotle and Plato regards the definition of rhetoric. In examining the practice of oratory, both men seek an understanding of what rhetoric is, whether it can be thought or learned, and what qualities are needed to practice oratory. Furthermore, both men explore the definition of what is "good", from which the position of "pleasure" must be defined in accordance to the implications it provides for persons who practice oratory, as well as the implications it provides when used as an end to a mean. Aristotle's idea about the definition of rhetoric is the same as that of Plato - both men agree that rhetoric is not an art (science) but rather a knack. However, Aristotle's argument about "pleasure" is different that that of Plato, as Aristotle regards pleasure as "good", and places fundamentally less importance on it then Plato.