The answer to this question is on page four of Brave New World. The D.H.C. says, essentially, that particularities make for happiness, rather than general knowledge. "Not philosophers," Huxley writes, "but fretsawyers and stamp collectors compose the backbone of society." This comes in the context of a tour of the London Hatchery and Conditioning facility given by the D.H.C. to a group of new students. He wants them to have enough of an idea of the job being done there that they can do their jobs effectively, but not so much that they are able to reflect on the process as a whole. What this means, basically, is that in the D.H.C.'s view, people are happier when they are immersed in their own work, and especially not thinking about the philosophical issues raised by it.