'Theory of Colors is part of the Program,' Isaac said – referring (Daniel knew) to a list of philosophical questions Isaac had recently written out in his Waste Book, and the studies he had pursued, entirely on his own, in hopes of answering them. Between the two young men in this room – Newton with his Program and Waterhouse with his God-given responsibility to keep the other from killing himself – neither had attended a single lecture, or had any contact with actual members of the faculty, in over a year. Isaac continued, 'I've been reading Boyle's latest – Experiments and Considerations Touching Colors – and it occurred to me: he uses his eyes to make all of his observations – his eyes are therefore instruments, like telescopes – but does he really understand how those instruments work? An astronomer who did not understand his lenses would be a poor philosopher indeed.'