We'll go back to the moon by not learning anything new.

Testing leads to failure, and failure leads to understanding.

We need affordable space travel to inspire our youth, to let them know that they can experience their dreams, can set significant goals and be in a position to lead all of us to future progress in exploration, discovery and fun. Thanks to the X Prize for the inspiration.

In the coming era of manned space exploration by the private sector, market forces will spur development and yield new, low-cost space technologies. If the history of private aviation is any guide, private development efforts will be safer, too.

Quite simply, our isolation from nature has become isolation from God's Word. Cocooned in our manmade world of climate-controlled homes, cars, subways, and high-rises, we're finding it easier to live as practical atheists.

We know humans have most flourished during times of what? Warming trends. So I think there's assumptions made that because the climate is warming, that that necessarily is a bad thing. Do we really know what the ideal surface temperature should be in the year 2100, in the year 2018?

There has been a banking crisis, a financial crisis, an economic crisis, a social crisis, a geostrategic crisis and an environmental crisis. That's considerable in a country that's used to being protected.

Climate change and ozone depletion are two global issues that are different but have many connections. In the ozone depletion case, we managed to work with decision makers effectively so that an international agreement called the Montreal Protocol was achieved that essentially solved the ozone depletion problem.