In terms of essays, I would say Oliver Sacks. His breadth of hard knowledge and imagination and empathy seems to constitute the perfect mind to me.
Hilary MantelIt's not easy to diagnose because depending where the endometrial deposits are, the symptoms can be quite different. It's an unrecognized problem among teenage girls, and it's something that every young woman who has painful menstruation should be aware of... It's a condition that is curable if it's caught early. If not, if it's allowed to run on, it can cause infertility, and it can really, really mess up your life.
Hilary MantelWhen I began to read as an adult, I read almost exclusively novelists of a generation back. I did the Russians, then I started getting more up to date. When you become published and become a reviewer, piles of books come along and you are pushed by fashion and what you are commissioned to do.
Hilary Mantel