The best arguments for the 1/3 answer to the Sleeping Beauty problem all require that when Beauty awakes on Monday she should be uncertain what day it is. I argue that this claim should be rejected, thereby clearing the way to accept the 1/2 solution.

The main claim of this essay is that knowledge is no more
valuable than lasting true belief.
This claim is surprising. Doesn't knowledge have a unique
and special value? If the main claim is correct and if, as it seems,
knowledge is not lasting true belief, then knowledge does not have a unique value:
in whatever way knowledge is valuable, lasting true belief is just as valuable.
However, this result does not show that knowledge is worthless, nor does it undermine
our knowledge gathering practices. There (...) is, rather, a positive philosophical payoff:
skepticism about knowledge is defused. Assuming one can have lasting true belief,
then even if one cannot have knowledge, one can have something just as valuable.
. (shrink)

I evaluate three replies to skepticism, drawing conclusions about the meaning of "justified", the viability of foundationalism, the value of knowledge, and the role of belief in rational action. ;In the first chapter, I examine the following skeptical argument: Something is justified only if justified by a justified thing; circular and infinite chains of justification are illegitimate; therefore, no belief is justified. A linguistic investigation reveals that this argument contains two ambiguities not yet noticed by epistemologists. The linguistic observations favor (...) foundationalism about justification, showing how the foundationalist can maintain his view, while explaining away the force of the skeptical argument. However, in the second chapter, I argue that foundationalism is unsatisfactory, for non-skeptical reasons. If a foundationalist tries to explain how some things can be basic, then she must endorse a certain kind of circularity. But a foundationalist should not endorse this circularity. ;Dissecting a single skeptical argument is an interesting although limited endeavour. In the third chapter, I argue that an entire class of skeptical arguments can be avoided. Distinguishing rational action from rational belief change, I claim that certain changes in belief cannot occur during a rational act. In particular, I argue, some skeptical conclusions cannot be accepted while performing an ordinary rational act. The main conclusion of this chapter is: to avoid acting irrationally, it is rational to avoid certain skeptical arguments. ;Sometimes it is better to concede to skepticism than to flee. In the fourth chapter, I argue that knowledge is no more valuable than stable true belief. This surprising claim supports the conclusion that skepticism about knowledge is harmless. Even if we cannot know anything about the external world---or even if we cannot know anything at all---we may have something just as valuable as knowledge: stable true beliefs. (shrink)

A common misunderstanding of Grice's distinction between <br>saying and implicating is that the hearer in a conversation <br>needs to use what is said in a calculation to determine what <br>is implicated. This mistake lead some to misconstrue the relation <br>between pragmatics and semantics.

I clarify and defuse an argument for skepticism about justification with the aid of some results from recent linguistic theory. These considerations illuminate debates about the structure of justification.