Please read chapter 4. From Jessica:

I thought this chapter might interest us as it ties together what seem to be two distinct topics: the norm for practical reasoning and the nature of evidence. Some have argued that one ought to rely on p in one’s practical reasoning if and only if one knows that p. Separately, some have argued that only what’s known is evidence. The arguments are typically entirely distinct. But, here, Daniel argues from the knowledge norm for practical reasoning to the idea that only knowledge is evidence.