I feel very strongly, we've got to give animals a good life. I've worked really hard improving slaughter plants and animal handling and transport. And people have said to me, why don't you work on improving conditions on pig farms? And basically, to be effective on making real change out there on the ground, you can only work on so many things. You know, you get too distributed, you're not effective.

I believe that the best way to create good living conditions for any animal, whether it's a captive animal living in a zoo, a farm animal or a pet, is to base animal welfare programs on the core emotion systems in the brain. My theory is that the environment animals live in should activate their positive emotions as much as possible, and not activate their negative emotions any more than necessary. If we get the animal's emotions rights, we will have fewer problem behaviors... All animals and people have the same core emotion systems in the brain.

I have been on the same dose of anti-depressants for 15 years, and my nerves still go up and down in cycles; but my nerves are cycling at a lower level than they were before.

By looking at autistic kids, you can't tell when you're working with them who you're going to pull out, who is going to become verbal and who's not. And there seem to be certain kids who, as they learn more and more, they get less autistic acting, and they learn social skills enough so that they can turn out socially normal.

I think the mild Aspergers have always been there. You see, Asperger's diagnosis did not become common in the U.S. until the early '90s. And an Aspergers has more or less normal speech development and they've always been here, that hasn't changed. I can think back to when I was in high school, this is 40 years ago, I could name kids in my high school class and college class that, today, would be diagnosed as Aspergers.

One area of study that still needs to be done is the kind of autism where kids have speech and they lose it. Some parents say it's happened right after vaccines. That group needs to be studied separately from others.

I like to figure things out and solve problems.