What are your opinions on his Tractatus Logico-Philosophicus?
I read it twice. It's a very short read and presented in nice indented logical form. I didn't understand a few of the more complex logical statements but I just skipped over them and gave him the benefit of the doubt. In the end I felt that I didn't learn anything that I hadn't already read in Nietzsche, particularly in The Will To Power, though it was worded differently.