It's an appreciation for life generally, every bit of life, the smallest creature that lives in the intestines of termites that make termite life possible - to the leaves that turn out oxygen and grab carbon dioxide and with water make simple sugars that feed much of the world. I mean, these are everyday miracles.

The image of Earth from space transformed our view of ourselves. It is maybe the most important image that exists - because we can see ourselves in context in a way that otherwise would be really hard to explain. It should inspire us to wonder about it, to want to know everything we can about it and do everything we can to take care of it.

America gains most when individuals have great freedom to pursue personal goals without undue government interference.

All through college, I had frequently been the only girl in a science class - which wasn't such a bad deal.

We have been far too aggressive about extracting ocean wildlife, not appreciating that there are limits and even points of no return.

We understand that we must make peace with nature - that our lives depend on it.

We have the capacity to alter the nature of nature. No, we don't have just the capacity - we are altering the nature of nature, the natural systems that cause the planet to function in our favor.