[530] Bhikkhus, suppose there were a bitter gourd mixed with poison. Then a man would come along, desiring life, not desiring death, desiring pleasure and recoiling from suffering (dukkha). They would say to him: 'Good man, this bitter gourd is mixed with poison. Drink it if you wish. As you drink it, it will not please you either in color, or in aroma, or in flavor; and having drunk it, you will come to death or to death-like pain.' Without reflecting, he would drink it and would not relinquish it. As he drank it, it would not please him either in color, or in aroma, or in flavor; and having drunk it, he would come to death or to death-like pain. Bhikkhus, comparable to that, I say, is this undertaking of dhammas (dhammasamādāna), namely, the undertaking of dhammas that is painful in the present and ripens in future pain.
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.