I always believed that my work should be unfinished in the sense that I encourage people to add their creativity to it, either conceptually or physically. Back in the 1960s, I was calling for 'Unfinished Music,' number one, and number two, with my artwork - I was taking unfinished work into the gallery. And that's how I was looking at it.

When I'm putting some communication out on Twitter or Facebook or Instagram, I think that it's helping me, my brain, you know, because it's always somehow stimulated by people who are sending things to me. And it works both ways. It's great. My brain is very happy about it.

Women have become stronger, and there's a backlash. Men have become terribly possessive. I find it much easier to get on with women.

Life keeps getting better. If anything, you start to carry a certain pride in having survived all those years.

Women are put in a position of feeling embarrassed about their bodies. It's so ridiculous, but also astounding - we have to always be apologetic about having created the human race.

Look at yourself in the mirror and don't be afraid to notice how beautiful you are.

People think that their world will get smaller as they get older. My experience is just the opposite. Your senses become more acute. You start to blossom.