AN 1.21

“Monks, I do not see a single thing that, when it’s not developed through meditation, is as inefficient as the mind. An undeveloped mind is inefficient in terms of realising the truth.”

AN 1.22

“Monks, I do not see a single thing that, when it is developed, is as efficient as the mind. A developed mind is efficient in terms of realising the truth.”

AN 1.23

“Monks, I do not see a single thing that, when it’s not developed, is as harmful as the mind. An undeveloped mind is very harmful.”

AN 1.24

“Monks, I do not see a single thing that, when it is developed, is as beneficial as the mind. A developed mind is very beneficial.”

AN 1.25

“Monks, I do not see a single thing that, when it’s not developed, and not attained to the stages of enlightenment, is as harmful as the mind. A mind that is undeveloped and has not attained to the stages of enlightenment is very harmful.”

AN 1.26

“Monks, I do not see a single thing that, when it is developed, and attained to the stages of enlightenment, is as beneficial as the mind. A mind that is developed and has attained to the stages of enlightenment is very beneficial.”

AN 1.27

“Monks, I do not see a single thing that, when it’s not developed and cultivated, is as harmful as the mind. An undeveloped and uncultivated mind is very harmful.”

AN 1.28

“Monks, I do not see a single thing that, when it is developed and cultivated, is as beneficial as the mind. A developed and cultivated mind is very beneficial.”

AN 1.29

“Monks, I do not see a single thing that, when it’s not developed and cultivated, brings such pain as the mind. An undeveloped and uncultivated mind brings pain.”

AN 1.30

“Monks, I do not see a single thing that, when it is developed and cultivated, brings such happiness as the mind. A developed and cultivated mind brings happiness.”