2.
The Discourse on the Footprint
140.
"Just as, monks, whatever kinds of footprints there are of living beings that walk on the ground, all of them are included in the elephant's footprint;
the elephant's footprint is declared the foremost among them, that is to say -
in terms of its greatness;
so too, monks, whatever wholesome mental states there are, all of them are rooted in diligence, converge in diligence;
diligence is declared the foremost among those mental states.
For a diligent monk, monks, this is to be expected -
he will develop the noble eightfold path, he will cultivate the noble eightfold path.
And how, monks, does a diligent monk develop the noble eightfold path, cultivate the noble eightfold path?
Here, monks, a monk develops right view, based upon seclusion, based upon dispassion, based upon cessation, maturing in release, etc.
he develops right concentration, based upon seclusion, based upon dispassion, based upon cessation, maturing in release, etc.
Thus, monks, a diligent monk develops the noble eightfold path, cultivates the noble eightfold path."
The second.