The statement flows much better in the original, since German has a word for being silent. Wovon man nicht sprechen kann, darüber muss man schweigen. I think it is a wonderful statement, that is unfortunately not followed enough. It would eliminate so much BS.

I have no problem with feelings expressed in poetry. There is more to words than their literal meaning. What bothers me is people like Karen Armstrong, a purported follower of Wittgenstein, who has written several books on God and come to the conclusion that God is beyond verbal description. Anybody for irony?