[ExI] Pinker on the persistence of pessimism

[William Flynn Wallace]

I think this should be listened to by everyone you know.  bill w

On Wed, Jan 14, 2015 at 12:16 AM, Dan <danust2012 at gmail.com> wrote:

>
> http://www.cato.org/multimedia/cato-audio/steven-pinker-persistence-pessimism
> <http://www.amazon.com/Dan-Ust/e/B00J6HPX8M/>
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