Pāli · Sutta Piṭaka (Pāli, Mahāsaṅgīti)
39
“Nāhaṁ, bhikkhave, aññaṁ ekadhammampi samanupassāmi yaṁ evaṁ adantaṁ aguttaṁ arakkhitaṁ asaṁvutaṁ mahato anatthāya saṁvattati yathayidaṁ, bhikkhave, cittaṁ. Cittaṁ, bhikkhave, adantaṁ aguttaṁ arakkhitaṁ asaṁvutaṁ mahato anatthāya saṁvattatī”ti.
English · Bhikkhu Sujato
39
“Mendicants, I do not see a single thing that is so very harmful as this mind that is not tamed, guarded, protected, and restrained. An untamed, unguarded, unprotected, and unrestrained mind is very harmful.”