Through the use of such "folk" concepts as belief, desire, intention, and expectation, Daniel Dennett asserts in this first full scale presentation of...

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? (shrink)

Following in the fashion of Stephen Jay Gould and Peter Medawar, one of the world's leading scientists examines how "pure science" is in fact shaped and guided by social and political needs and assumptions.

What is the connection between thought and language? The dependence of speaking on thinking is evident, for to speak is to express thoughts. This dependence is manifest in endless further ways. Someone who utters the sentence “The candle is out” as a sentence of English must intend to utter words that are true if and only if an indicated candle is out at the time of utterance, and he must believe that by making the sounds he does he is uttering (...) words that are true only under those circumstances. These intentions and beliefs are not apt to be dwelt on by the fluent speaker. But though they may not normally command attention, their absence would be enough to show he was not speaking English, and the absence of any analogous thoughts would show he was not speaking at all. (shrink)