AN 5.53
Anga Sutta: Factors (for Exertion)
translated from the Pali by
Thanissaro Bhikkhu

"These are the five factors for exertion. Which five?

"There is the case where a monk has conviction, is convinced of the Tathagata's Awakening: 'Indeed, the Blessed One is pure & rightly self-awakened, consummate in knowledge & conduct, well-gone, an expert with regard to the world, unexcelled as a trainer for those people fit to be tamed, the Teacher of divine & human beings, awakened, blessed.'

"He is free from illness & discomfort, endowed with good digestion — not too cold, not too hot, of moderate strength — fit for exertion.

"He is neither fraudulent nor deceitful. He declares himself to the Teacher or to his wise friends in the holy life in line with what he actually is.

"He keeps his energy aroused for abandoning unskillful mental qualities and taking on skillful mental qualities. He is steadfast, solid in his effort, not shirking his duties with regard to skillful mental qualities.

"He is discerning, endowed with discernment leading to the arising of the goal — noble, penetrating, leading to the right ending of stress.

"These are the five factors for exertion."