You reproduced everything he said. If I saw your post only, I would assume that what I was reading were Harrison Weber's words paraphrasing Joshua Gross. Instead, it is what Gross said. And not even in quotations.
So what should you do? After the original text by Weber, post a title and a link to Gross' post. That's it.
I'm looking at this now: http://thenextweb.com/shareables/2012/05/14/how-3-simple-but...
You reproduced everything he said. If I saw your post only, I would assume that what I was reading were Harrison Weber's words paraphrasing Joshua Gross. Instead, it is what Gross said. And not even in quotations.
So what should you do? After the original text by Weber, post a title and a link to Gross' post. That's it.