Yesterday, Mother Lucy pointed out to me that (according to her youthful, athletic son John) it’s better to take one day off from exercise in a week than to exercise every day. (Actually, she said ‘training’, but that implies a goal or a norm, and in my case the goal or the norm is just going out and getting the exercise, so ‘training’ seems grandiose.) With that in view, I took this morning off, slept straight through to six o’clock, and enjoyed my hot breakfast without breaking a sweat. I’ll probably have some marking to do tomorrow, but during term-time the relaxing break of weekends makes a huge difference in favour of having the energy to push on through the week.