"This life as you now live it and have lived it you will have to live once again and innumerable times again; and there will be nothing new in it, but every pain and every joy and every thought and sigh and everything unspeakably small or great in your life must return to you, all in the same succession and sequence... The eternal hourglass of existence is turned over again and again, and you with it, speck of dust!" — Friedrich Nietzsche