By Thyself
379. Rouse thyself by thyself, examine thyself by thyself, thus self-protected and attentive wilt thou live happily, O Bhikshu!
380. For self is the lord of self, self is the refuge of self; therefore curb thyself as the merchant curbs a good horse.
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/sbe1027.htm