You must recognize that your real enemy, the thief who steals your happiness, is the inner thief, the one inside your mind, the one you have cherished since beginningless time. Therefore, make the strong determination to throw him out and to never let him back in.
Lama Yeshe
source: http://www.lamayeshe.com/index.php?sect=article&id=85&chid=124
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