If a man, before he passed from one stage to another, could know his future life in full detail, he would have nothing to live for. It is the same with the life of humanity. If it had a programme of the life which awaited it before entering a new stage, it would be the surest sign that it was not living, nor advancing, but simply rotating in the same place.
Leo Tolstoy (2009). “The Kingdom of God Is Within You: Easyread Super Large 18pt Edition”, p.134, ReadHowYouWant.com