Whoever with skill and wisdom expertly asks,
to him it will speak and teach him all manner of things joyful to the mind...
But if anyone should in ignorance question it at first with rudeness,
to him in vain it will chatter high-flown gibberish forever...
--- Hymn to Apollo
The 3600 year old Phaistos Disk from Crete is a continuing enigma. Its text remains untranslated, its message remains unheard.