Can anyone help me with this quotation in Ancient Greek:
ηδυν δε βιον μυστησι πρωφαινε - Orpheus
I'm working on a website about the English poet, Robert Buchanan (1841-1901) and I've come across this quote in the introduction to one of his books of poetry and would like to know the translation and (if possible) the source of the quote.
I've tried the online dictionaries but nothing comes up - whether Buchanan transcribed the Greek correctly I'm not sure, or maybe my transcription is at fault. The capital letter version is as follows:
ΗΔΥΝ ΔΕ ΒΙΟΝ ΜΥΣΤΗΣΙ ΠΡΩΦΑΙΝΕ
Any help would be appreciated.