If someone has a gun and is trying to kill you, it would be reasonable to shoot back with your own gun.
Dalai LamaIf we adopt a self-centered approach to life, by which we attempt to use others for our own self interest, we might be able to gain temporary benefits, but in the long run we will not succeed in achieving even our personal happiness, and hope for the next life is out of the question.
Dalai LamaEven an animal, if you show genuine affection, gradually trust develops... If you always showing bad face and beating, how can you develop friendship?
Dalai Lama