Alone in my tower at midnight, I remember the woods and downs, the sea and sky, that daylight showed. Now, as I look through each of the four windows, north, south, east and west, I see only myself dimly reflected, or shadowed in monstrous opacity upon the fog. What matter? To-morrow sunrise will give me back the beauty of the outer world as I wake from sleep.

But the mental night that has descended upon me is less brief, and promises no awakening after sleep. Formerly, the cruelty, the meanness, the dusty fretful passion of human life seemed to me a little thing, set, like some resolved discord in music, amid the splendour of the stars and the stately procession of geological ages. What if the universe was to end in universal death? It was none the less unruffled and magnificent. But now all this has shrunk to be no more than my own reflection in the windows of the soul through which I look out upon the night of nothingness. The revolutions of nebulae, the birth and death of stars, are no more than convenient fictions in the trivial work of linking together my own sensations, and perhaps those of other men not much better than myself. No dungeon was ever constructed so dark and narrow as that in which the shadow physics of our time imprisons us, for every prisoner has believed that outside his walls a free world existed; but now the prison has become the whole universe. There is darkness without, and when I die there will be darkness within. There is no splendour, no vastness, anywhere; only triviality for a moment, and then nothing.

Why live in such a world? Why even die?

Bertrand Russell, The Autobiography of Bertrand Russell: 1914-1944, London, 1968, pp. 158-159