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.

I'm not the kind of woman who would love to make soup or knit sweaters. I never cherished that so much.

There are things you can never take, no matter how strong you are.

You can't always measure the effects of activist work; you just have to wish and pray that the message gets through.

When I got pregnant, I had to concentrate on being pregnant for a whole nine months, even though I knew it was ruining my career at the time.

IMAGINE PEACE: Think PEACE, Act PEACE, Spread #‎ PEACE .

Not being appreciated for 40 years or something ... It feels like I was accused of something that I didn't do, which was breaking up the Beatles. That was like being somebody who is in prison without having done anything wrong.