I remember so well a book of her paintings that included stories of her early life as a painter: cold water flat, much austerity. All this has gone out of fashion among artists now. It used to be that the biggest sin was to compromise one's authentic art in order to make money. Now it's actually to fail to make money as an artist, to fail to take an "entrepreneurial spirit" with one's art.
Hail, Agnes Martin! (March 22 is her birthday.) She lived to age 92.
It's interesting that this interview with Agnes Martin was in 1997, the same year that Eckhart Tolle published his first book, "The Power of Now" -- which I do recommend.