Why saint Theresa is always helping on other people?

I believe Mother Theresa is just on of the very few people in this world who are very willing to give all they have and all they are to others--without counting the cost nor waiting for something in return. One truly amazing lady simply because she spent all her life helping the poor and the afflicted. I don't know if we still can find her likes.

That is because she believed in humanity and so helping others is like helping over self she belived in the magic of sharing she was a person with no personal interest all she work for the welfare of others and the community as a whole

That is because she believes and loves God.Helping others is her way in showing that she do believe in Him.She love serving,Helping,sheltering and clothing others. She is a beliver of God.And it was just right to gave her Noble prizes. Mother Theresa was called the living saint in that time She doing those Did.And I also admire her.