I'm at this point in my career where I'm trying to step away from the realm of fine arts, because I think it's a very exclusive, very restrictive place to be. What I want to be able to do is to change the lives of people with the same materials they deal with every day.

I think most people have creative ideas and have very strange, unorthodox impulses of things that they can do with their lives. I've had many of these over the years, but I decided the more important question was, 'When did I start calling this art?'

My first job in Brazil was actually to develop a way to improve the readability of billboards, and based on speed, angle of approach and actually blocks of text. It was very - actually, it was a very good study, and got me a job in an ad agency. And they also decided that I had to - to give me a very ugly Plexiglas trophy for it.

The first five minutes in Gramacho is really overwhelming because all of your senses are being attacked. Visually, too, because your eyes move and see fragments of things you recognize, but not quite, so it's very artistic. Your eyes are moving, then there's the smell, and the noise is unbearable.

DonorsChoose was conceived at a Bronx public high school where I taught social studies for five years. In the teachers' lunch room, my colleagues and I often lamented a problem that drained learning from students and creativity from teachers: a lack of funding for essential materials and for the activities that bring subject matter to life.

With many serious challenges facing our country - pressing issues like climate change, income inequality, and education - Trump has expressed neither the inclination nor the ability to take on these problems.

My teacher was still practicing Bach until his death at 89. I have no doubt that if I live that long, I'll be doing the same thing.

My mom was a piano teacher. It turned into something of a competition between me and her students... I liked the idea that I needed to be better than everybody else.