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!'

Eugenie Clark

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.

Alessandra Ambrosio

Underwater, I experience space with my body. I'll see a school of fish gathering and moving together and I'll exclaim, 'This is architecture.'

Antoine Predock

To get ready to climb Everest, I did a lot of hill running with a daypack on and a lot of underwater swimming. I would swim a couple of lengths underwater and then a couple above. It gets your body going with limited oxygen.

Bear Grylls

I love storytelling, I love being a visual person, and it just made perfect sense to be an underwater photographer and explore the ocean and work with scientists.

Brian Skerry

I typically shoot underwater with my regular camera in an underwater housing, and then I usually have two big strobes that I use to light. But with whales, you're not going to be able to really light a 45-foot subject. Your strobes are only effective for maybe five or six feet underwater.

Brian Skerry

I have been blessed to realize my dream of becoming an underwater photojournalist, but with that, I feel an obligation and sense of urgency to share what I have seen with others.

Brian Skerry

Being able to breathe underwater would be sweet.

Cameron Bright

Being able to breathe underwater would be sweet. There is so much life underneath the water that we don't know about. I would love to check out the bottom of the ocean to see what's going on down there.

Cameron Bright

The best simulator for spacewalking is underwater - it allows full visuals and body movement in 3D. Virtual reality is good, too, and has some advantages, like full Station simulation, not just part. Like all simulators, they have parts that are wrong and misleading: an important thing to remember when preparing for reality.

Chris Hadfield

I think something that forces financial institutions to write down underwater mortgages, I think, would be a sensible thing to do.

Christina Romer

Luckily, unreasonable expectations go hand in hand with naive young scientists. The more naive the better - otherwise we would never have the audacity to try and build a 22,000-mile-high space elevator or some sprawling underwater hotel.

Daniel H. Wilson

As a kid I used to hold my breath longer than anybody else, and then I heard stories about people accidently underwater for 45 minutes - how do you recover from that? It's not a miracle. Something allows us to survive.

David Blaine

I swam underwater for 50 meters at a time and walked the length of the pool underwater, with a brick in each hand, all on a single breath.

David Goggins

It was great. I mean, it's a blast directing underwater stuff.

David R. Ellis

I've always loved scuba diving and the cell-tickling feel of being underwater, though it poses unique frustrations. Alone, but with others, you may share the same sights and feelings, but you can't communicate well.

Diane Ackerman

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

Enric Sala

When I was a kid, Jacques Cousteau was my hero and the person who inspired me to become an underwater explorer. I have many other people who inspired me after him, but he is still my all-time hero.

Enric Sala

Young men often seek tests and trials, and to me, BUD/S training - basic underwater demolition/SEAL - seemed like the ultimate test.

Eric Greitens

I do pool exercises, like weightlifting but underwater. I walk, I swim... I'm pretty fit for an old bloke.

Eric Idle

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!'

Eugenie Clark