Then, much later, Bill Maher.
If you or anyone else really wants to understand where the left/progressives are getting their ideas from, the leading thinkers and their Heroes.
Take a few hours and more.
The Salk Institute.
Beyond Belief: Science, Reason, Religion & Survival
November 5, 6 7th 2006.
http://thesciencenetwork.org/programs/beyond-belief-science-religion-reason-and-survival