A discourse on the four kinds of right effort: to restrain, to abandon, to develop, and to preserve.

A discourse on four qualities — virtue, learning, ardent energy, and wisdom — that show one has entered the path to certainty and is bent on destroying the corruptions.

The second discourse of the Mahā Vagga in the Suttanipāta, describing how Māra tempted the meditating Buddha-to-be with his eightfold army of lust, discontent, hunger, craving, cowardice, doubt, hypocrisy, and stupor, only to retire in defeat.

A discourse on the four right efforts: for the non-arising of unwholesome states, for their abandoning, for the arising of wholesome states, and for their increase and fulfilment.