Then a certain bhikkhu approached the Blessed One … and said to him:

“Venerable sir, it is said, ‘an unwise dolt, an unwise dolt.’ In what way, venerable sir, is one called ‘an unwise dolt’?”

“Bhikkhus, it is because one has not developed and cultivated the seven factors of enlightenment that one is called ‘an unwise dolt.’ What seven? The enlightenment factor of mindfulness … the enlightenment factor of equanimity. It is because one has not developed and cultivated these seven factors of enlightenment that one is called ‘an unwise dolt.’”