“seyyathāpi, bhikkhave, yāni kānici rukkhajātānaṃ phandano tesaṃ aggamakkhāyati yadidaṃ mudutāya ceva kammaññatāya ca. evamevaṃ kho ahaṃ, bhikkhave, nāññaṃ ekadhammampi samanupassāmi yaṃ evaṃ bhāvitaṃ bahulīkataṃ mudu ca hoti kammaññañca yathayidaṃ cittaṃ. cittaṃ, bhikkhave, bhāvitaṃ bahulīkataṃ mudu ca hoti kammaññañca hotī”ti.

"Just as, of all trees, the balsam is foremost in terms of softness and pliancy, in the same way I don't envision a single thing that, when developed & cultivated, is as soft & pliant as the mind. The mind, when developed & cultivated, is soft & pliant."