A good starter piece is "Twelve Virtues of Rationality" at
[link] .
Another good starter is, of all things, an alt-universe Harry Potter fanfic where alt-Harry was raised by a professor and steeped in this sort of thing - the first ten chapters form a decent mini-story in themselves, so if you decide you don't like it by the time you finish that one, then the end of chapter ten makes a good stopping place. It's at
[link] .