R. Paul refutes Geary's view about the 'blue wave-length' ('lenghts are _not_, let alone _blue_) and adds as per exegesis: >By the way, there is no such thing as 'colour,' and hasn't been since 1727. Aha. So, it's just a matter of a chronological index. I propose: [excuse my Austrian accent] "Beilaufig gesprochen: Die Gegenstande sind farblos -- seit 1727." (Wittgenstein, TLP 2.0232) Only he possibly did not write that lest it confuse the common reader (notably Russell). Interstingly, dogs also do not perceive colours. I wonder if Wittgenstein's message is that we are more animals than we think (we are)? Cheers, JL ------------------------------------------------------------------ To change your Lit-Ideas settings (subscribe/unsub, vacation on/off, digest on/off), visit www.andreas.com/faq-lit-ideas.html