We are blessed with a place that is open to the universe and, despite this, supports this very thin envelope of air we call atmosphere, which holds just the right amount of oxygen for us to breathe.

Evolution is not something to be feared. It's to be celebrated, embraced, and understood.

I hope that someday we will find evidence that there is intelligent life among humans on this planet.

I find the lure of the unknown irresistible.

When I write a scientific treatise, I might reach 100 people. When the 'National Geographic' covers a project, it communicates about plants and fish and underwater technology to more than 10 million people.

If somebody dumps something noxious in my back yard, the dumper is the last one I would call on to repair the damage.

There's something missing about how we're informing the youngsters coming along about what matters in the world. We teach them the numbers and the letters, but we fail to communicate the importance of our connection to the living world.