Restraint with the eye is good, good is restraint with the ear. Restraint with the nose is good, good is restraint with the tongue. Restraint with the body is good, good is restraint with speech. Restraint with the heart is good, good is restraint everywhere. A monk everywhere restrained is released from all suffering & stress.

- Dhammapada, 25, translated by Thanissaro Bhikkhu.