People with no imagination try to make things which will last for ever, and even want to live for ever themselves. But the intelligently imaginative man knows very well that it is waste of labor to make a machine that will last ten years, because it will probably be superseded in half that time by an improved machine answering the same purpose. He also knows that if some devil were to convince us that our dream of personal immortality is no dream but a hard fact, such a shriek of despair would go up from the human race as no other conceivable horror could provoke. With all our perverse nonsense as to John Smith living for a thousand million eons and for ever after, we die voluntarily, knowing that it is time for us to be scrapped, to be remanufactured, to come back, as Wordsworth divined, trailing ever brightening clouds of glory.

Shaw, A Treatise on Parents and Children