Odyssey 19.560–561

ξεῖνʼ, ἦ τοι μὲν ὄνειροι ἀμήχανοι ἀκριτόμυθοι

γίγνοντʼ, οὐδέ τι πάντα τελείεται ἀνθρώποισι.

Stranger, dreams are baffling, their speech impossible to judge,

and not all of them come true for mortals.