Whereat Daniel must have looked shocked, for Hooke held up a hand as if to restrain him, and continued: 'I understood his state of mind too well. Some of us, Daniel, are prone to a sort of melancholy, wherein we are tormented by phant'sies that other men are secretly plotting to do us injury. It is a pernicious state for a man to fall into. I have harbored such notions from time to time about Oldenburg and others. Your friend Newton shows signs of the same affliction. Of all men in the world, I supposed John Comstock least susceptible to this disorder; but when he came here with this bag, he was very far gone with it, which grieved me more than anything else that has happened of late.'