People who are great thinkers, in science or in art, people who are great performers, have to have that kind of capacity. Without that kind of capacity, it's extremely difficult to manage a high level of performance because you're going to get a lot of extraneous material chipping away at the finery of your thinking or the finery of your motor execution.

There are ways in which you can make that distinction objective to a certain degree. For example, by looking at responses that could be generated in the brain to exactly the same stimulus and there could be differences there.

We may express them [emotions] physically slightly differently, and it's of course graded depending on the circumstance, but the essence of the process is going to be the same, unless one of us is not quite well put together and is missing something, otherwise it's going to be the same.

There are things in our lives that take up an enormous importance and that become very dominant effects in our biography. And that comes out of a variety of reasons, but fundamentally comes out of how that particular experience connects with your effective systems of response.

When we talk about emotion, we really talk about a collection of behaviors that are produced by the brain. You can look at a person in the throes of an emotion and observe changes in the face, in the body posture, in the coloration of the skin and so on.

A mind is so closely shaped by the body and destined to serve it that only one mind could possibly arise in it. No body, never mind.

I think it's possible to a certain extent to make those comparisons. The problem is the detail with which the comparison can be made. Of course, the first place to make such a comparison would be to ask for a testimony from different people and have people report on what they experience.