And so, Donal is right: there is a 'should,' or a 'must,' there. And he is also right in seeing it as non-tautological. Wittgenstein is emphasizing his own realization, if you will, that the elucidatory propositions mentioned in 6.54 do not have the status of the scientific and ordinary language empirical propositions which they purport to be about. If you stare at a single sentence in a philosopher's work you may find it strange. If you read it in the context of the entire work it may begin to make more sense. Or not. Robert Paul The Reed Institute ------------------------------------------------------------------ To change your Lit-Ideas settings (subscribe/unsub, vacation on/off, digest on/off), visit www.andreas.com/faq-lit-ideas.html