The Republic by Plato Part 6 Page 49

Nevertheless, I do not wonder that the many refuse to believe; for they have never seen that of which we are now speaking realized; they have seen only a conventional imitation of philosophy, consisting of words artificially brought together, not like these of ours having a natural unity. But a human being who in word and work is perfectly moulded, as far as he can be, into the proportion and likeness of virtue — such a man ruling in a city which bears the same image, they have never yet seen, neither one nor many of them — do you think that they ever did?

No indeed.

No, my friend, and they have seldom, if ever, heard free and noble sentiments; such as men utter when they are earnestly and by every means in their power seeking after truth