Quote Originally Posted by Curmudgeon View Post
Page 83 of Book of Exalted Deeds begs to differ.

Looks like more than "nothing" there. You can't utterly devote yourself to Good with a non-Good alignment.
Right, but all that says is that good people derive great power from them. It doesn't say that neutral people don't, and even if it did, it wouldn't say that neutral people are forbidden from casting them, only from deriving great power from them.