“Youth is an unsatisfactory period, full of errors, uncertainties and distress. You will grow out of it. What’s more, you were meant to grow out of it, into something more mature and satisfactory. Don’t let middle-aged people get away with the story that this is the best time of your life and that after it there is nothing to look forward to … Go on doing the thing you think you ought, or want, to be doing at the moment, and at about 40 you may discover that you actually are doing it and settle down to enjoy it.”