Vīṇopamasutta
“Yassa kassaci, bhikkhave, bhikkhussa vā bhikkhuniyā vā cakkhuviññeyyesu rūpesu uppajjeyya chando vā rāgo vā doso vā moho vā paṭighaṁ vāpi cetaso, tato cittaṁ nivāreyya. Sabhayo ceso maggo sappaṭibhayo ca sakaṇṭako ca sagahano ca ummaggo ca kummaggo ca duhitiko ca. Asappurisasevito ceso maggo, na ceso maggo sappurisehi sevito. Na tvaṁ etaṁ arahasīti. Tato cittaṁ nivāraye cakkhuviññeyyehi rūpehi …pe… yassa kassaci, bhikkhave, bhikkhussa vā bhikkhuniyā vā jivhāviññeyyesu rasesu …pe… manoviññeyyesu dhammesu uppajjeyya chando vā rāgo vā doso vā moho vā paṭighaṁ vāpi cetaso tato cittaṁ nivāreyya. Sabhayo ceso maggo sappaṭibhayo ca sakaṇṭako ca sagahano ca ummaggo ca kummaggo ca duhitiko ca. Asappurisasevito ceso maggo, na ceso maggo sappurisehi sevito. Na tvaṁ etaṁ arahasīti. Tato cittaṁ nivāraye manoviññeyyehi dhammehi.
The Simile of the Harp
“Mendicants, any monk or nun who has desire or greed or hate or delusion or aversion come up for sights known by the eye should shield their mind from them: ‘This path is dangerous and perilous, thorny and tangled; it’s a wrong turn, a bad path, in poor condition. This path is frequented by untrue persons, not by true persons. It’s not worthy of you.’ The mind should be shielded from this when it comes to sights known by the eye. Any monk or nun who has desire or greed or hate or delusion or repulsion come up for sounds … smells … tastes … touches … ideas known by the mind should shield their mind against them: ‘This path is dangerous and perilous, thorny and tangled; it’s a wrong turn, a bad path, a sorry state. This path is frequented by untrue persons, not by true persons. It’s not worthy of you.’ The mind should be shielded from this when it comes to ideas known by the mind.