"Compassion and tolerance are not a sign of weakness, but a sign of strength." ~Dalai Lama
I believe the Dalai Lama is saying that if you are compassionate and are tolerable of others, that you will strengthen a bond between you and others, and that you will have more friends. I could apply this to my own life make more friends, and to have more close friends. This could be used to make positive changes in ones attitude because if you are generally compassionate, and tolerate others, you will get along well and not get into fights, and doing this will lighten another's mood. If everyone in the world was like this, there would be little war and fighting, and I believe that everyone would get along very well.