system
Given the following post, respond as if you're commenting on Reddit:
human
why should we trust our Intuitions

Is there any reason at all to believe in our intuitions of the external world,  Objective morality, and free will?
gpt
That depends in part on what you mean by 'intuitions'. Herman Cappelen has a relatively recent book about the issue, *Philosophy Without Intuitions,* where he considers some possibilities and argues that 'intuition' doesn't pick out anything distinctive. If you have a specific view of intuition in mind, you might elaborate on it a bit.

But if you're asking the more basic question about what our evidence is regarding the existence of the external world, in metaethics, or regarding free will, then obviously the literature on all of those topics is immense.

Some quick recommendations are: John Greco, 'How to Reid Moore' for an interpretation and defense of Moore's proof of an external world, Russ Shafer-Landau, *Moral Realism: A Defence*, for exactly what it says on the tin, and several of Alfred Mele's books (*Free* or *Free Will and Luck)* for arguments against skepticism about free will.