“Nāhaṃ, bhikkhave, aññaṃ ekadhammampi samanupassāmi yaṃ evaṃ lahuparivattaṃ yathayidaṃ cittaṃ. Yāvañcidaṃ, bhikkhave, upamāpi na sukarā yāva lahuparivattaṃ cittan”ti.

"I don't envision a single thing that is as quick to reverse itself as the mind — so much so that there is no feasible simile for how quick to reverse itself it is."