You are at Delphi, on the slopes of Mount Parnassus, at the temple of Apollo where his oracle spoke.
In Plato's Protagoras, Socrates names seven wise men of old: Thales of Miletus, Pittacus of Mytilene, Bias of Priene, Solon of Athens, Cleobulus of Lindus, Myson of Chen and Chilon of Sparta. He says they met together and dedicated their wisdom to Apollo by writing two sayings in his temple at Delphi, “which are on every tongue”.
This is one of the two, and it is only two words long. LSJ, the great Greek dictionary, records that Aristotle gave it to Chilon, the Spartan among the seven. The poet Pindar used it too.
Forgot how a letter is read? The whole alphabet
Sound out each word, letter by letter, then clicktap it to check yourself. These are the letters it uses: clicktap one to see how it sounds.