Most of the southern hemisphere is unexplored. We had more exploration ships down there during Captain Cook's time than now. It's amazing.

I believe in just enriching the economy. And we're leaving so much on the table, 72 percent of the planet.

I prefer sayings over jokes.

You don't go to Gettysburg with a shovel, you don't take belt buckles off the Arizona.

It's not a huge surprise that there are habitations at the bottom of the Black Sea.

The fact that this chain of life existed [at volcanic vents on the seafloor] in the black cold of the deep sea and was utterly independent of sunlight - previously thought to be the font of all Earth's life - has startling ramifications. If life could flourish there, nurtured by a complex chemical process based on geothermal heat, then life could exist under similar conditions on planets far removed from the nurturing light of our parent star, the Sun.

What drives me is exploration with a purpose, more the classic Royal Geographical Society genre.