I'm gonna die but I haven't thought about retiring.

I was blessed to look well and retain a youthful look but that was just genes. I was disappointed when critics started pointing out my wrinkles. I thought, you mean this is what it's gonna be about now? I'm not going to be permitted to be human?

When I grew up, shame was used as a tool for check and balance. If you stood a chance of hearing someone say, "Shame on you," or "You should be ashamed of yourself," you thought twice. It doesn't seem to be a factor today.

I guess the optimistic thing is that those people in Congress who are climate deniers, I think their time has run out.

In fact, I think more broadly about what an audience requires, but I want an audience to be fascinated by the process of finding an answer, or finding out there isn't one.

The meter is ticking [particularly in the face of climate change], so you've got to get to as much as you can as fast as you can. I grew up with 'This Land Is Our Land,' and public land doesn't belong to that administration or this one. We want our kids to grow up with real natural places, not just photos of them.

I used to feel competitive about a career, but now the only things I'm really passionate about are my family, the environment and Indians.