[7] Bhikkhus, for the most part beings are captivated (laḷitā) by sensual pleasures (kāma). When a clansman (kulaputta) has abandoned the sickle and the carrying-pole and gone forth from the household life into homelessness, he is fit to be spoken of thus: "a clansman gone forth out of faith (saddhā)." For what reason? Because sensual pleasures are obtainable through youth, and those of whatever kind they may be; and, bhikkhus, whether they be inferior sensual pleasures, middling sensual pleasures, or superior sensual pleasures, all are reckoned simply as "sensual pleasures."
Suppose, bhikkhus, a young, tender infant, lying on its back, should, through the negligence of its nurse, put a stick or a pebble into its mouth. The nurse would attend to it very quickly; having attended to it very quickly, she would very quickly take it out. If she were not able to take it out very quickly, she would quickly take hold of it with her left hand and, crooking a finger of her right hand, extract it even together with blood. For what reason? There is, bhikkhus, distress in this for the child — I do not say there is none — and yet, bhikkhus, this must be done by the nurse who desires the child's good, who seeks its welfare, who is compassionate, out of compassion. But when that child has grown up and possesses sufficient wisdom (paññā), then, bhikkhus, the nurse becomes unconcerned about that child, thinking: "The child can now guard himself; he is no longer liable to heedlessness (pamāda)."
So too, bhikkhus, so long as a bhikkhu's work with regard to wholesome qualities has not been done by faith, his work with regard to wholesome qualities has not been done by moral shame (hiri), his work with regard to wholesome qualities has not been done by moral dread (ottappa), his work with regard to wholesome qualities has not been done by energy, his work with regard to wholesome qualities has not been done by wisdom, for so long, bhikkhus, must that bhikkhu still be looked after by me. But when, bhikkhus, a bhikkhu's work with regard to wholesome qualities has been done by faith, his work with regard to wholesome qualities has been done by moral shame, his work with regard to wholesome qualities has been done by moral dread, his work with regard to wholesome qualities has been done by energy, his work with regard to wholesome qualities has been done by wisdom, then, bhikkhus, I am unconcerned about that bhikkhu, thinking: "The bhikkhu can now guard himself; he is no longer liable to heedlessness."
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.