My buddy from London Business School, Omar Samra, has become a world famous mountain climber since graduation. I met Omar the quarter I studied abroad from Kellogg. He was a such a positive guy and you could see the gleam in his eyes that would guide his journey to great things. At the time, he was consumed by the idea of being the first Egyptian to scale Everest.
You can see his talk here, unfortunately, it's in another language, but I asked Omar for a transcript. I'll post it if I can get it.