More Woe to Him
388. Because a man is rid of evil, therefore he is called Brâhmana; because he walks quietly, therefore he is called Samana; because he has sent away his own impurities, therefore he is called Pravragita (Pabbagita, a pilgrim).
389. No one should attack a Brâhmana, but no Brâhmana (if attacked) should let himself fly at his aggressor! Woe to him who strikes a Brâhmana, more woe to him who flies at his aggressor!
Sacred Books of the East, Vol. 10: The Dhammapada and Sutta Nipata,
by Max Müller and Max Fausböll, [1881], at:
http://www.sacred-texts.com/bud/sbe10/sbe1028.htm