July 5. We made a list. In the ever-growing avalanche of things that interest me, the most important are: writing, physical exercise, music. I spend at least an hour a day on each of these. It seems unthinkable to me to give up any of them, but if I did, I would do it in the reverse order. Everything else is nice, but non-essential. Perhaps I can apply the principle that one should not have hobbies, but projects, to this: projects in these three areas, elsewhere they are a waste of time.