As I was growing up, it was made clear that the fat me wasn't welcome, that a thin person was expected and awaited, and impatiently so.

When popularity is your only goal, doing well in class is going to feature very low, if at all, on your priority list.

Success, in whatever form it takes, is a tricky thing - once you've achieved your goal, then what? Where do you aim?

I'm the co-chair of the PTA at my kids' school, Ashmount Primary, in north Islington, London.

I loved gymnastics, and my gymnastics teacher said ballet was essential to help my dance routines in competitions. I only really went because my friends were going as well. It wasn't this kind of hidden love. Then, slowly, my friends stopped going and I thought, 'I like this. I am going to stay.'

Education means teaching kids how to do stuff and how to think about stuff. Education is a pretty simple concept with a very clear way to measure results: you give some kind of an exam - maybe it's one of those standardized tests all kids hate, maybe it's some kind of essay, but whatever it is, it'll measure the results, and the kids will hate it.

Just as the traditional taxi system revolted against ride sharing, so too does the education establishment feel threatened by the rise of school choice.

While in medical school, I was drafted into the U.S. Army with the other medical students as part of the wartime training program, and naturalized American citizen in 1943. I greatly enjoyed my medical studies, which at the Medical College of Virginia were very clinically oriented.