BE PURE IN DEED
Kayappakopam rakkheyya kayena samvuto siya
Kaya duccaritam hitva kayena sucaritam care.
Guard against evil deeds, control your body. Giving up evil deeds, cultivate good deeds. 
BE PURE IN SPEECH
Vacipakopam rakkheyya vacaya samvuto siya
Vaci duccaritam hitva vacaya sucaritam care.
Guard against evil speech, control your speech. Giving up evil speech, cultivate good speech. 
BE PURE IN THOUGHT
Manopakopam rakkheyya manasa samvuto siya
Mano duccaritam hitva manasa sucaritam care.
Guard against evil thoughts, control your mind. Giving up evil thoughts, cultivate good thoughts. 
BE PURE IN DEED, SPEECH AND THOUGHT
Kayena samvuta dhira atho vacaya samvuta
Manasa samvuta dhira te ve suparisamvuta.
The wise are controlled in deed, they are controlled in speech, they are controlled in thought. Indeed they are perfectly self-controlled. 
Six bhikkhus wearing wooden sandals, and each holding a staff with both hands, were walking to and fro on a big stone slab, making much noise. The Buddha hearing the noises asked Venerable Ananda what was going on, and Ananda told him about the six bhikkhus. The Buddha then explained that one must always be considerate and not disturb the peace. He further exhorted the bhikkhus to restrain themselves in word and deed. From that time onwards the Buddha discouraged bhikkhus from wearing wooden sandals.