Aïguttara Nikàya
IV. Adanta Vagga
31.Bhikkhus, I do not know of a thing that is so harmful as a not tamed mind. A not tamed mind is harmful. This is the first.
32.Bhikkhus, I do not know of a thing that is harmless, as a tamed mind. A tamed mind is harmless. This is the second.
33. Bhikkhus, I do not know of a thing that is so harmful as an uncontrolled mind. An uncontrolled mind is harmful. This is the third
34. Bhikkhus, I do not know of a thing that is so harmless, as a controlled mind. A controlled mind
is harmless. This is the fourth.
35.Bhikkhus, I do not know of a thing that is so harmful as an unprotected mind. An unprotected mind is harmful This is the fifth.
36. Bhikkhus, I do not know of a thing that is so harmless, as a protected mind. A protected mind is harmless. This is the sixth
37. Bhikkhus, I do not know of a thing that is so hàrmful as an unrestrained mind. An unrestrained mind is harmful. This is the seventh
38. Bhikkhus, I do not know of a thing that is so harmless, as a restrained mind. A restrained mind
is harmless. This is the eighth.
39.Bhikkhus, I do not know of a thing that is so harmful as a not tamed, not controlled, not protected and not restrained mind. A not tamed, not controlled, not protected and not restrained mind is harmful
40. Bhikkhus, I do not know of a thing that is so harmless as a tamed, controlled, protected and restrained mind. A tamed, controlled, protected and restrained mind is harmless.