So my message is in whichever realm, be it going into space or going into the deep sea, you have to balance the yin and yang of caution and boldness, risk aversion and risk taking, fear and fearlessness. No great accomplishment takes place, whether it be a movie or a deep ocean expedition, or a space mission, without a kind of dynamic equipoise between the two. Luck is not a factor. Hope is not a strategy. Fear is not an option.

It's about human imagination and curiosity. What's out there? What's in the great beyond? What exists at levels we can't see with our five senses?

There are many talented people who haven't fulfilled their dreams because they over thought it, or they were too cautious, and were unwilling to make the leap of faith.

In writing the new films, I’ve come to realize that AVATAR’s world, story and characters have become even richer than I anticipated, and it became apparent that two films would not be enough to capture everything I wanted to put on screen.

You can have a strong economy or you can help the environment, but you can't do both at the same time. That's ridiculous. In fact, as a sustainable vision for a healthy economy has to involve changing our energy policy and changing with respect to the natural world. Because we're hitting nature's thresholds, we're hitting nature's limits with respect to water and crop yields and energy use and fossil fuels heating the atmosphere at the same time we're past global peak and running out of that.

I want to challenge all of you as people of deep conscience, people who are environment stewards of the earth and oceans ... By changing what you eat, you will change the entire contract between the human species and the natural world.

Everybody's going to do the 3D slightly differently the same way that people are going to deal with color differently. Some movies downplay the color, some color is very vibrant. Color design is very different. We've got to think of 3D like color or like sound, as just part of the creative palette that we paint with and not some whole new thing that completely redefines the medium.