I think that Hassan embodies the basic message of the quote because he is selfless in his devotion to Amir. When Amir is nervous, Hassan reassures him without any hesitation or reflection about himself. Hassan volunteers to chase down the kites and serves as almost a good luck charm for Amir. Hassan never thinks of himself when it comes to Amir, almost to a fault. He is undying in his loyalty to his friend. He never questions him and sacrifices himself in so many ways for Amir. It comes to a point where Hassan never forces a fundamental choice between both, as he would always give himself. When Hassan is raped, he knows Amir saw it. He knows that Amir could have done something, but remained silent. Yet, Hassan says nothing. He does not act in a resentful manner. In this, Hassan thinks only of Amir, and not of himself. When he is falsely accused of theft by Amir, he never argues back, only to apologize profusely. He sacrifices his dignity and his own sense of self for Amir's friendship, something that in of itself is tilted towards Amir. It is this selfless that makes him so admirable in that he gives all of himself to this friendship without asking or expecting anything in return. It is for this reason that I think that the quote is reflective of Hassan.