Here is the second Mishna of Pirke Avos. Enjoy, and feel free to comment. Follow us at @PirkeAvos to get updates on new posted audio and articles.
(about 15 minutes)
Here is a downloadable copy of the class on Pirke Avos, Chapter 1, Mishna 2
Here is a written explanation of Mishna 2, Perek 1 of Pirke Avos.