Abstract
Are there matters we should exclude from inquiry? Personal privacy apart, it seems difficult to justify. By what higher, better knowledge than the results of inquiry itself could one know what inquiry ought not know? Is such knowledge a metaphysical intuition whose authority cannot be questioned? Isn't that a fairy-tale? But what about ethics? What about ethical limitations on knowledge? Can they not concern more than simply what to do with knowledge we have, concerning instead the very dynamic of knowledge, the direction of inquiry itself? Might not the best ethics of knowledge teach that certain directions of inquiry are forbidden, like a trespass against personal privacy?