16.
The Discourse on the Question about What Is Difficult to Do
329.
"Now what, friend Sāriputta, is difficult to do in this Teaching and discipline?"
"Going forth, friend, is difficult to do in this Teaching and discipline."
"But for one gone forth, friend, what is difficult to do?"
"For one gone forth, friend, contentment is difficult to do."
"But for one who is content, friend, what is difficult to do?"
"For one who is content, friend, practice in accordance with the Teaching is difficult to do."
"But how long, friend, would a monk practising in accordance with the Teaching be a Worthy One?"
"Not long, friend."
The sixteenth.