At Savatthī. “Bhikkhus, just as a pot without a stand is easily knocked over, while one with a stand is difficult to knock over, so the mind without a stand is easily knocked over, while the mind with a stand is difficult to knock over. sn.v.21
“And what, bhikkhus, is the stand of the mind? It is this Noble Eightfold Path; that is, right view … right concentration. This is the stand of the mind.
“Bhikkhus, just as a pot … so the mind without a stand is easily knocked over, while the mind with a stand is difficult to knock over.”