The hat people wear to class

Watch an evening calligraphy class in Cairo for a few weeks and the room sorts itself.

One student practises at home between sessions, not for a grade, because there is no grade. She fills pages because she wants to see what her hand can do. Another watches the best page on the table and makes sure his is a little better next week, and when he joins a new class he will look round to see who to beat. A third is nearly as good as both, and somehow never quite gets there; there is always a reason, a bad pen, a long day, a teacher who prefers someone else.

Then the majority. They do the work set, keep up with whoever sits beside them, go faster when the room is fast. They would never call themselves the best in the class, and they never try to be. And at the back, a couple who came to do as little as the class will allow, and are good at it.

By the third week, everyone can guess which is which. The roles are oddly stubborn. Change the teacher or the room and they shift a little, then settle back.

It is tempting to think these are personalities, handed out early, perhaps at school. They are closer to habits. The same person who coasts in calligraphy may be the one who practises alone at the piano. The role is something people put on, and something they can take off.

Only one of those roles keeps improving when nobody is watching and nobody is competing. Every other one depends on the room: a rival to beat, a pace to match, a reason to stop.

In the end the choice is short. Either you push yourself, or you wait for someone else to.