Years ago, after I'd answered several questions from a group of teens, one of them asked how I could stay optimistic and keep on going. I answered that instead of getting sad, I get mad.

Without information, there can be no real understanding of the ramifications of our choices.

Money and stuff aren't what makes us happy. It's strong connections within families and friends, communities of people that truly care about one another.

Being mad is activating. Being sad can lead to hopelessness. I'm not hopeless. I'm very hopeful.

It's incredibly disturbing to me that humans are disrupting pretty much every single living system on the planet.

As much as it's awful to learn about all the greedy and selfish decisions that some people make, I know there are many more people who have good intentions.

We have spent the better part of the last fifty years being inundated by advertising, being told that we will be happier if we get more stuff. But that's been backfiring recently.