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Quotes are said by people and all news sources publish them on their websites. So, how can google consider that as duplicate content?
Panda is definitely a site-wide algorithm
dilute the copied quotes
It's not a good business model, plain and simple.
Therefore we can't simply say "It's not a good business model, plain and simple."
I don't know I've not seen his site
His website publishes the quotes said by celebrities at one particular place so that they will be easily accessible to the users. It can be compared to the stock prices published by websites (of course, they have other news content along with the prices). All the websites publish the same prices, so that can't be duplicate content.