I think now that this is the great division between people. There are people who find life hard and those who find it easy. There are those who have a natural, in-built, expectation of happiness, and there are those who feel that happiness is not to be expected: that it is not, in fact, one of the rights of man. Nor, God knows, one of the rights of women.
When men decided women could be educated - this is what I think - they educated them on the male plan; they put them into schools with mottoes and school songs and muddy team games, they made them were collars and ties. It was a way to concede the right to learning, yet remain safe; the products of the system would always be inferior to the original model. Women were forced to imitate men, and bound not to succeed at it.
It'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 mess up your life.[Author Hilary Mantel on being asked about being a writer with endometriosis, Nov 2012 NPR interview]