Know thyself and thou wilt know the universe and the gods -> Γνώθι σαυτόν και θα γνωρίσεις το σύμπαν και το θείον

[spiros]

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Δεν βρήκα αναφορά για την πλήρη φράση, είναι η παρακάτω;

Γνώθι σαυτόν και θα γνωρίσεις το σύμπαν και το θείον
ΓΝΩΘΙ ΣΑΥΤΟΝ ΚΑΙ ΘΑ ΓΝΩΡΙΣΕΙΣ ΤΟ ΣΥΜΠΑΝ ΚΑΙ ΤΟ ΘΕΙΟΝ

[billberg23]

Δεν ξέρω ούτε και εγώ αν υπάρχει αρχαία πηγή.  Έχω αμφιβολίες.

[spiros]

It is so strange though that the English phrase is so popular (vis-à-vis the Greek hits): Know thyself and thou wilt know the universe and the gods

[billberg23]

That happens all the time, though, on the Web.  Someone comes up with an intriguing phrase and, to lend it authority, attributes it to an ancient source like Socrates, Plato, Aristotle, or (in this case) Apollo's temple at Delphi.  Once it's on the Internet, it spreads like an airborne virus.

In fact, there was no such inscription in or on the temple — only the two Δελφικὰ παραγγέλματα, ΓΝΩΘΙ ΣΑΥΤΟΝ and ΜΗΔΕΝ ΑΓΑΝ.  (Pausanias 10.24.1)

[spiros]

Yes, you are right.

[billberg23]

The Greek version you cite is an interesting mixture of ancient (Γνώθι σαυτόν) and modern (θα γνωρίσεις) Greek.  Is it actually proverbial in modern Greek, and in those very words?  Do you know how old it is?  Back in June, I attempted a purely ancient Greek version of an almost identical statement (Σαυτὸν γνοὺς καὶ πάντα γνώσει τὰ τῶν θεῶν τε καὶ τοῦ κόσμου μυστήρια.), but of course was only shooting in the dark.

[spiros]

Haven't got a clue, it is something I found on the web...
http://projetbabel.org/forum/viewtopic.php?p=65028