There is an enormous amount to be learned about the sea; like most wildernesses, it has great potential.

Humans have always wondered the big questions, "Who am I? Where have I come from? Where am I going?" It's part of human nature. It's perhaps the underpinnings of religion.

Places change over time with or without oil spills, but humans are responsible for the Deepwater Horizon gusher - and humans, as well as the corals, fish and other creatures, are suffering the consequences.

People ask: Why should I care about the ocean? Because the ocean is the cornerstone of earth's life support system, it shapes climate and weather. It holds most of life on earth. 97% of earth's water is there. It's the blue heart of the planet - we should take care of our heart. It's what makes life possible for us. We still have a really good chance to make things better than they are. They won't get better unless we take the action and inspire others to do the same thing. No one is without power. Everybody has the capacity to do something.

No creature on Earth ever has organized themselves in ways that we have, with the capacity to alter the nature of nature the way we have.

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

Every time I slip into the ocean, it's like going home.