People wouldn’t have become who we are today if we hadn’t coevolved with dogs.

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.

The thing about being autistic is that you gradually get less and less autistic, because you keep learning, you keep learning how to behave. It's like being in a play; I'm always in a play.

To understand animal thinking you've got to get away from a language.

What would happen if the autism gene was eliminated from the gene pool? You would have a bunch of people standing around in a cave, chatting and socializing and not getting anything done.

What parents and teachers and caregivers did with me that actually worked and a lot of that was the old fashion 50s upbringing. They just gave the instruction when I did something wrong - life was more structured. So basically it's [my work] based on experiences with me that worked and it was teachers and parents that made me have those experiences.

Different cats don't like certain litter. They also don't like an unstable floor, no animal like's unstable floor. So if you put a thin piece of plastic down under a litter box and the cat walks on it and starts to slip, they don't like that. Any animal doesn't like an unstable floor.