Knowing your own mind

[FIRST PARAGRAPH] What is it to “know your own mind”? In ordinary English, this phrase connotes clear headed decisiveness and a firm resolve but in the language of contemporary philosophy, the indecisive and the susceptible can know their own minds just as well as anybody else. In the philosopher’s usage, “knowing your own mind” is just a matter of being able to produce a knowledgeable description of your mental state, whether it be a state of indecision, susceptibility or even confusion. What exercises philosophers is the fact that people seem to produce these descriptions of their own mental lives without any pretence of considering evidence or reasons of any kind and yet these descriptions are treated by the rest of us as authoritative, at least in a wide range of cases. How can this be?