If you wish to talk specifics, fine, what shall we talk about? I especially like his findings that philosophy is not a theory or doctrine, but rather an activity--and a activity of nonsensical nonsense. I believe one of his most important statements is this: this and this there is in the world, that there is not, is doomed to be a failure and has gone outside the limits of the world and itself. Basically all of philosophy he is saying.
It is so wonderfully interesting to read his logical deductions on language, all leading the point that philosophy is nonsense. Really, he carries on the tradition of Nietszche and the Pre-Socratics, and adds logic to refute and destroy the language based constructions of philosophy of every dogmatic philsopher. After reading his rather byzantine paragraphs that all refer back to prior thought from another paragraph whose reference he never gives, one eventually understands at least the core of his thought.
Really, if one thinks about it, what philosophy besides existential and psychological ( but not the behavioural aspect of psychology as Wittegenstein states) musings about our situation is even possible these days after Wittgenstein? He had rendered the whole idea of dogmatic and systematic philosophy useless.
