"We're going to build the bridge to the 21st century, we have to make our children free - free of the vise grip of guns and gangs and drugs; free to build lives of hope."

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So many people have that kind of attitude and approach to learning that it gives me great hope for the world. I say hope in the sense that innovations in science and technology will be the engines of a 21st century economy and I don't want to go broke, as a nation. So, the hope I have is that, if people embrace it, we'll have a healthier, more secure, wealthier nation than we have.

— Neil deGrasse Tyson