about rousseau and machiavelli. >> how do they reconcile each other, or do they? >> well, actually, they both come up with this ideology of what the natural state of man was really all about. [ticking] >> you want to go to college? >> much as it kills me, yes. >> when ed bradley met richar anozier in 2005, it was for a story about the harlem children's zone, an inner-city education program run by a remarkable man named geoffrey canada... >> good morning, boys and girls. >> and considered one of the most ambitious social experiments to alleviate poverty in our lifetime. >> if you work hard... >> but back then, there was no way to tell if the experiment was working. today the results are in, and they're nothing short of stunning. just ask richar anozier. do you know what college you want to go to? >> stanford. >> what do you want to do after stanford? >> i would like to earn my way to being a ceo. >> welcome to 60 minutes on cnbc. i'm bob simon. in this edition, we look at three groundbreaking approaches to education. first, we visit the seed public charter school,