Whoa dude how'd you get that article from the future like that?
("AUSTIN, TEXAS— Oct. 31, 2013 — 21CT, Inc.")
Okay so beyond my Bill & Ted reference calling out an error in your article, I just want to say that there is nothing wrong with what you call "pull quotes" and they definitely will not negatively affect your SEO.
Repeating a sentence does not qualify as duplicate content. Duplicate content would be a problem if you had this exact same article on another page of your website. In other words, the duplication problems arise between pages, not within pages. Does this make sense?
Pull quotes work fine, it's all about user experience.