On Reflection : Oxford University Press : 9780198708681 : 0198708688 : 04 Sep 2014 : Hilary Kornblith presents a new account of reflection, and its importance for knowledge, reasoning, freedom, and normativity. Philosophers have frequently extolled the value of reflective self-examination, and a wide range of philosophers, who differ on many other things, have argued that reflection can help to solve a number of significant philosophical problems. The importance of reflecting on one's beliefs and desires has been viewed as the key to solving problems about justification and knowledge; about reasoning; about the nature of freedom; and about the source of normativity. In each case, a problem is identified which reflective self-examination is thought to address. Kornblith argues that reflection cannot solve any of these problems. There is a common structure to these issues, and the problems which reflection is thought to resolve are ones which could not possibly be solved by reflecting on