Margaret Geller

Hunger, inadequate medical care, poor housing, and inferior schools are enemies of the sense of wonder. It is easier and less expensive in the long run to prevent a loss of imagination by providing adequate nutrition, housing, medical care, and schooling than it is to try to restore that loss.

When I have a creative insight, there is a high. I think back in the day, I made music as much as I did because it made me feel so good. I think you could argue that there is a creative addiction - but, you know, the healthy kind.

To those who ask what the infinitely small quantity in mathematics is, we answer that it is actually zero. Hence there are not so many mysteries hidden in this concept as they are usually believed to be.