Leibniz raised his eyebrows and spent a few moments staring at the clutter of pots and cups on the table. 'This is one of the two great labyrinths into which human minds are drawn: the question of free will versus predestination. You were raised to believe in the latter. You have rejected it – which must have been a great spiritual struggle – and become a thinker. You have adopted a modern, mechanical philosophy. But that very philosophy now seems to be leading you back towards predestination. It is most difficult.'