Some of my favorite experiences of art are when I am there but my attention has wandered. I think stimulation is overrated, and persistent stimulation is exhausting. You sometimes have to be banal, tedious: make the rhythm go soft and slow, give the mind a rest.

If I give a book as a gift, it is invariably a children's book with beautiful artwork and a simple text. I adore the feel of them, the care taken in the artwork, and the high visual stimulation that sets off the simple but often powerful message the text conveys.

After several trillion dollars of stimulation by the Obama Administration and the Fed, one might think the economy would be chugging along at a pretty good clip. But, it just isn't so, and the light at the end of the tunnel is pretty dim. Just ask a small business owner.

NASA has been one of the most successful public investments in motivating students to do well and achieve all they can achieve. It's sad that we are turning the programme in a direction where it will reduce the amount of motivation and stimulation it provides to young people.

I bought a place in Milan, but Missoni headquarters are out in the country, in Sumirago. My whole family eats out of the same vegetable garden; my mother raises chickens. I love the city, but if you're always bombarded with stimulation, you get numb to it. I need to get bored to create.

I'm sure the feeling of fear, as long as you can take advantage of it and not be rendered useless by it, can make you extend yourself beyond what you would regard as your capacity. If you're afraid, the blood seems to flow freely through the veins, and you really do feel a sense of stimulation.

I spent three years there and encountered great teachers who gave me enough stimulation to last me for the rest of my life - Josef Albers, painter; Buckminster Fuller, inventor; Max Dehn, the mathematician, and many others. Through them, I came to understand the total commitment required if one must be an artist.

Children need stimulation and stability. That can come from grandparents, cousins, teachers, nannies, childcare centres - as long as they engage with the children and are really fond of them. There are also times when children need to be left alone to learn to be independent and to encourage their imaginary friends.

Normal people have an incredible lack of empathy. They have good emotional empathy, but they don't have much empathy for the autistic kid who is screaming at the baseball game because he can't stand the sensory overload. Or the autistic kid having a meltdown in the school cafeteria because there's too much stimulation.

I always like to believe that my work is about the expansion of the possibilities of the viewer. So if you have a sense of a heightened situation where there's an excitement, a physical excitement and an intellectual stimulation, there's just this sense of expansion. Because that's where the art happens. Inside the viewer.

Shallow emotions. An incapacity to feel genuine love. A need for stimulation. Frequent verbal outbursts. Poor behavioural controls. These are just some of the things that social media are encouraging in all of us. They're also a pretty comprehensive diagnostic checklist for sociopathy - in fact, that's where I got the list.

The music itself is very challenging, so I've never really felt the lack of stimulation. I love to be creating; I love to be making things and solving problems, I suppose, and when I'm not, then I'm not an incredibly good person to be around. If I'm not busy, then I think I would be disaster. That's just the way things are.

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