"If you accept the ordinary laws of science, you have to suppose that human life and life in general on this planet will die out in due course: it is a stage in the decay of the solar system... You see in the moon the sort of thing to which the earth is tending – something dead, cold, and lifeless. I am told that that sort of view is depressing, and people will sometimes tell you that if they believed that, they would not be able to go on living. Do not believe it; it is all nonsense. Nobody really worries much about what is going to happen millions of years hence. Even if they think they are worrying much about that, they are really deceiving themselves. They are worried about something much more mundane, or it may merely be a bad digestion; but nobody is really seriously rendered unhappy by the thought of something that is going to happen to this world millions and millions of years hence. Therefore, although it is of course a gloomy view to suppose that life will die out – at least I suppose we may say so, although sometimes when I contemplate the things that people do with their lives I think it is almost a consolation – it is not such as to render life miserable. It merely makes you turn your attention to other things."