Pāli · Sutta Piṭaka (Pāli, Mahāsaṅgīti)
3. Akammaniyavagga 21
“Nāhaṁ, bhikkhave, aññaṁ ekadhammampi samanupassāmi yaṁ evaṁ abhāvitaṁ akammaniyaṁ hoti yathayidaṁ, bhikkhave, cittaṁ. Cittaṁ, bhikkhave, abhāvitaṁ akammaniyaṁ hotī”ti.
English · Bhikkhu Sujato
The Chapter on the Unworkable 21
“Mendicants, I do not see a single thing that is so unworkable as this mind that is not developed. An undeveloped mind is unworkable.”