We have nightmares because our brain is running simulations to put us in jeopardy to see what we'll do or to acclimatize us to that idea that something bad could happen. It's just how human beings are wired because the entire time we were evolving we had to jump quick or the leopard would get us or whatever it was. It's Darwinian.

Every time you dive, you hope you'll see something new - some new species. Sometimes the ocean gives you a gift, sometimes it doesn't.

If you faced a long hungry period with nothing between you and starvation but a bit of barley and a pig, you'd be better off turning the barley into beer and letting the pig starve.

I love short trips to New York; to me it is the finest three-day town on earth.

I lived in a small town. It was 2,000 people in Canada. A little river that went through it and we swam in the - you know, there was a lot of water around. Niagara Falls was about four or five miles away.

I think people had somehow gotten the sense that we have explored everything, when that isn't the case. We so know so little about the ocean, and so much of it is being destroyed.

If you set your goals ridiculously high and it's a failure, you will fail above everyone else's success.