““Dwindling energy is one of the most boring things about being old. From time to time you get a day when it seems to be restored, and you can't help feeling that you are 'back to normal', but it never lasts. You just have to resign yourself to doing less--or rather, taking more breaks than you used to in whatever you are doing. In my case I fear that what I most often do less of is my duty towards my companion rather than indulgence of my private inclinations.””
