Now, there are many, many people in the world, 
 but relatively few with whom we interact, 
 and even fewer who cause us problems. 
 So, when you come across such a chance for practicing patience and tolerance, 
 you should treat it with gratitude. 
 It is rare. 
 Just as having unexpectedly found a treasure in your own house, 
 you should be happy and grateful to your enemy 
 for providing that precious opportunity.
-His Holiness the Dalai Lama