You can't be on the cusp of innovation and at the forefront of technology if you're wearing blinders. If you don't have an exploration program where you're exploring your world here on Earth, underwater, and in space, then you're wearing blinders and handicapping yourself.

When you're underwater getting pounded, you are at the mercy of the ocean.

Everyone loves to fly, and flying underwater is even better than flying in air because there are things around you.

When my son was 8 months old, he had a febrile seizure. You know, if you're in the first year - my wife and I refer to it as the 'darkness.' You're just underwater.

The scariest stunt I've ever done was on 'Captain America.' We were doing some underwater sequence. I was in a submarine, and Chris Evans had to break the glass, and the water had to fill up quickly in the submarine.

I live in New Hampshire. We're in favor of global warming. Eleven hundred more feet of sea-level rises? I've got beachfront property. You tell us up there, 'By the end of the century, New York City could be underwater,' and we say, 'Your point is?'

A marine ecologist is a scientist who studies the many species that live underwater and how they interact with each other and with humans.

Cave divers, of course, deal with an elevated level of risk, and the most that I can say here is that we tend to conduct our work at the bottom of a deep cave on an extremely conservative basis with heavy levels of backup equipment and a policy to abort if any single person doesn't like the situation underwater at any time during the mission.

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.

Russell James asked me to shoot underwater. He tied my feet under the water. I don't know how many feet - maybe five, six meters. He tied me underwater and I had no air. Somebody had a tube, and they were giving me some oxygen, but I couldn't really see anything. Everything was blurry. I'm waiting for the oxygen - that was the craziest thing.

And if you like 14.4 percent unemployment, if you like the fact that 70 percent of home mortgages in Nevada are underwater, then stay the course. Vote for Harry Reid.

I filmed underwater for two days in the open ocean with dolphins.

I've always said, 'Underwater or on top, men and women are compatible.'

When you're on a submarine you're usually underwater for months at a time, and you don't get to Skype or make phone calls. When you get messages, they're maybe two sentences. They're very short.

Being able to breathe underwater would be sweet.

People come to me and say, 'What'll I do if I go in the water and see a shark?' You don't have to do anything. The chances of that shark attacking you in any way is so remote. The sea should be enjoyed, the animals in it. When you see a shark underwater, you should say, 'How lucky I am to see this beautiful animal in his environment!'

Like most people, I find watching the lazy and quiet underwater realm of a big aquarium exceptionally calming.

To recruit staff, I traveled all over the country talking with people who had been working on one or another aspect of the atomic-energy enterprise and people in radar work, for example, and underwater sound, telling them about the job, the place that we are going to, and enlisting their enthusiasm.

I like underwater life.

I can't think of anything I regret. Everything I've done, I've enjoyed doing. I've had five husbands, four children. I've done it all, but mainly I've enjoyed studying fish and being underwater with them, being in their natural habitat, looking at the fish and the fish looking at me.