ABSTRACT
The transmission of epistemic grounds involves the speaker making her epistemic grounds available to a listener. This chapter focuses on this issue. It argues that the speaker's testimony making epistemic grounds available to transmit to a listener is a matter of the speaker's testimony being sincere in a particular sense. Both doxastic sincerity and epistemic sincerity involve being in a position to vouch for what one says. In the case of doxastic sincerity, a speaker vouches for what she says by reference to the fact that she believes what she says. In the case of epistemic sincerity, a speaker vouches for what she says by reference to the epistemic grounds that support what she says. Testimony can therefore make knowledge available to transmit in cases where the speaker's testimony is epistemically sincere, even if the speaker is not such that not easily would she assert what she does unless she knew it.
