What I suggest is that at six o’clock you look facts in the face and admit that you are not tired (because you are not, you know), and that you arrange your evening so that it is not cut in the middle by a meal. By so doing you will have a clear expanse of at least three hours. I do not suggest that you should employ three hours every night of your life in using up your mental energy. But I do suggest that you might, for a commencement, employ an hour and a half every other evening in some important and consecutive cultivation of the mind. You will still be left with three evenings for friends, bridge, tennis, domestic scenes, odd reading, pipes, gardening, pottering, and prize competitions. You will still have the terrific wealth of forty-four hours between 2 p.m. Saturday and 10 a.m. Monday. If you persevere you will soon want to pass four evenings, and perhaps five, in some sustained endeavour to be genuinely alive. And you will fall out of that habit of muttering to yourself at 11.15 p.m., “Time to be thinking about going to bed.” The man who begins to go to bed forty minutes before he opens his bedroom door is bored; that is to say, he is not living.
But remember, at the start, those ninety nocturnal minutes thrice a week must be the most important minutes in the ten thousand and eighty. They must be sacred, quite as sacred as a dramatic rehearsal or a tennis match. Instead of saying, “Sorry I can’t see you, old chap, but I have to run off to the tennis club,” you must say, “...but I have to work.” This, I admit, is intensely difficult to say. Tennis is so much more urgent than the immortal soul.