The trend lines in research and innovation look good for places such as India and China and less good for America as we go forward. So even if you're not enchanted by the prospect of cosmic discovery, the prospect of dying poor may be what it takes to understand the role of this adventure in the future of the natural world in which we live.

Our planet has been around only for four and a half billion years. Let's imagine a planet that has life on it such as life is on Earth and it's seven billion years old. Let's say that planet evolved intelligence. Well, that intelligence would be way more advanced than what we call intelligence here on Earth. How long has intelligence been around on Earth as we've come to define it?

As areas of knowledge grow, so too do the perimeters of ignorance.

As religion is now practiced and science is now practiced, there is no intersection between the two. That is for certain. And it’s not for want of trying. Over the centuries, many people—theologians as well scientists - have tried to explore points of intersection. And anytime anyone has declared that harmony has risen up, it is the consequence of religion acquiescing to scientific discovery. In every single case.

There is no science in this world like physics. Nothing comes close to the precision with which physics enables you to understand the world around you. It's the laws of physics that allow us to say exactly what time the sun is going to rise. What time the eclipse is going to begin. What time the eclipse is going to end.

If humans one day become extinct from a catastrophic collision, there would be no greater tragedy in the history of life in the universe. Not because we lacked the brain power to protect ourselves but because we lacked the foresight. The dominant species that replaces us in post-apocalyptic Earth just might wonder, as they gaze upon our mounted skeletons in their natural history museums, why large headed Homo sapiens fared no better than the proverbially peabrained dinosaurs.

If you want to assert a truth, first make sure it's not just an opinion that you desperately want to be true.