So, you know, I think the age of exploration is just beginning, not ending, on our planet.

Great is the person who plants a tree knowing he will never sit under it.

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

It is a quiet and peaceful place - and a fitting place for the remains of this greatest of sea tragedies to rest.

The body is sort of a pain. It has to go to the bathroom. It has to be comfortable. But the spirit is indestructible. It can move at the speed of light.

Everything I'm going to present to you was not in my textbooks when I went to school ... not even in my college textbooks. I'm a geophysicist, and [in] all my Earth science books when I was a student - I had to give the wrong answer to get an A.

Why are we ignoring the oceans? Why does NASA spend in one year what NOAA will spend in 1600 years? Why are we looking up? Why are we afraid of the ocean?