[302] Suppose, friend, a man in need of heartwood, seeking heartwood, wandering in search of heartwood, taking a sharp axe, were to enter a forest. There he would see a great plantain trunk, straight, fresh, without a fruit-bud core. He would cut it at the root; having cut it at the root, he would cut it at the top; having cut it at the top, he would unroll the leaf-sheaths. There he would not find even softwood — how then heartwood? Even so, friend, a bhikkhu does not regard anything among the six bases of contact (phassāyatana) as self or as belonging to self. Regarding them thus, he does not cling to anything in the world; not clinging, he is not agitated; not agitated, he personally attains final Nibbāna. He understands: "Birth (jāti) is destroyed, the holy life has been lived, what had to be done has been done, there is no more for this state of being."
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.