https://sites.google.com/a/mail.ccsf.edu/potts/phil-25a-ancient-philosophy

you can find some useful PPT from the website above

Of the philosophers we have studied, choose the one that intrigues you the most, for good or ill; that is, because you agree or disagree with the philosopher’s views. In the case of Plato or Aristotle, you should choose some particular doctrine of his (e.g., Plato’s theory of Forms or Aristotle’s theory of substances) rather than try to tackle his whole philosophy. It would be a good idea to tell me what topic you have in mind before beginning work. I can let you know whether your proposed topic is likely to make a good paper, and maybe give you some advice about it.

Whatever topic you choose, make a critical assessment of the ideas it encompasses. Describe the content of the philosophy or theory (briefly—you don’t have to go into great detail), and explain its strengths and weaknesses. Be sure to explain why the strengths are strengths and the weaknesses are weaknesses. Just saying, “I do/don’t like it” is insufficient. If you choose a philosophy you disagree with, be sure to recognize some of its important strengths, as well as its weaknesses. And vice versa, if you choose a philosophy you agree with, be sure to recognize some of its important weaknesses as well as its strengths.