Available on Youtube
I can't seem to find this on DVD anywhere but, fortunately, some kind soul has uploaded it to Youtube, with English subtitles. If the subtitles don't work for you right away, click the "CC" button on the bottom of the video screen and click "English". Also, bear in mind that the speech at the absolute beginning isn't translated because it's in Latin rather than French, so that's why the subtitles don't appear immediately even if they're on.
Part 1:
https://www.youtube.com/watch?v=-SP4iii_THQ
Part 2:
https://www.youtube.com/watch?v=E-6ruyZFfZs
"To punish the oppressors of humanity is clemency. To forgive them is cruelty."
-Robespierre