A seductive summary on capitalism?

[Schmitto2121]

I saw someone post an articulate summary about capitalism, explaining the good in such a system and how it is really suppose to be, through voluntary exchange, etc.It was very articulate and well put but now I cant find it. I would love for some others if possible..I certainly know what capitalism is but i cant put it into words lik this guy did and I am lookng to convert some socialists that ive been argueing with that blame our present day crisis on capitalism

Thanks in advance!