You mustn't get so upset about what you feel, Spud. No one's a hundred per cent consistent all the time. We might like to be. We can plan our lives along certain lines. But you know, there's no future in screwing down all the pressure valves and smashing in the gauge. You can do it for a bit and then something goes. Sometimes it gets so that the only thing is just to say, 'That's what I'd like to feel twenty-four hours a day; but, the hell with it, this is how I feel now.'

p. 285 - The Charioteer (1953)