"Yet you have been awake five nights tending some work that you’ll not entrust to any assistant. You suffer obvious ill effects of quicksilver poisoning. You will not admit it is the Great Work, but what else could it be? And I cannot read your mind, Isaac, or ask you to divulge secrets, but I can see plainly enough that it failed. And if it was meant to combine with Fatio’s theory of gravity, then that has failed as well."