René Girard actually _is_ a must-read. No need to go through everything he has written -- though his works are a great gateway to our (Western) culture as they draw on everything from ancient mythologies (notably greek) to modern philosophy, with a focus on the sources on the Christian religion. Start with "I See Satan Fall Like Lightning", a very straightforward, almost romanesque read, and if interested, read "Violence and Religion" and "Things Hidden Since The Foundation Of The World". A great way to dive into Humanities.