[719] "Suppose, student, there were a man blind from birth. He would not see dark and bright forms, would not see blue forms, would not see yellow forms, would not see red forms, would not see magenta forms, would not see the even and the uneven, would not see the stars, would not see the moon and sun. He might speak thus: 'There are no dark and bright forms, and there is no one who sees dark and bright forms; there are no blue forms, and there is no one who sees blue forms; there are no yellow forms, and there is no one who sees yellow forms; there are no red forms, and there is no one who sees red forms; there are no magenta forms, and there is no one who sees magenta forms; there is no even and uneven, and there is no one who sees the even and uneven; there are no stars, and there is no one who sees the stars; there are no moon and sun, and there is no one who sees the moon and sun. I do not know this, I do not see this; therefore it does not exist.' Speaking thus, student, would he be speaking rightly?"
"No indeed, worthy Gotama. There are dark and bright forms, and there is one who sees dark and bright forms; there are blue forms, and there is one who sees blue forms; there are yellow forms, and there is one who sees yellow forms; there are red forms, and there is one who sees red forms; there are magenta forms, and there is one who sees magenta forms; there is the even and uneven, and there is one who sees the even and uneven; there are stars, and there is one who sees the stars; there are the moon and sun, and there is one who sees the moon and sun. One who said, 'I do not know this, I do not see this; therefore it does not exist,' would not be speaking rightly, worthy Gotama."
"Even so, student, the brahmin Pokkharasāti Opamañña of the Subhaga Forest is blind, without eyes. That he indeed should know, or see, or realize a distinction in knowledge (ñāṇa) and vision worthy of the noble ones, surpassing the human state — this is not possible."
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.