[94] "It is possible, brahmin, to lay down a gradual training (anupubbasikkhā), a gradual course of action, and a gradual progress in this Dhamma and Discipline (dhammavinaya). Just as, brahmin, a skilled horse-trainer, having obtained a fine thoroughbred horse, first makes it undergo the exercise of accepting the bit, and afterwards makes it undergo further exercises — even so, brahmin, the Tathāgata, having obtained a person fit to be tamed, first disciplines him thus: 'Come, bhikkhu, be virtuous; dwell restrained by the restraint of the Pātimokkha, possessed of proper conduct and resort; seeing danger in the slightest faults, undertake and train in the training rules.'"
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.