Are we to love only those who deserve our love? Ye have heard that it hath been said thou shalt love thy neighbor and hate thine enemy. But I say unto you love thy enemies, bless them that curse you, do good to them that hate you, and pray for them that despitefully use you and persecute you; That ye may be the children of your Heavenly Father, which art in heaven.
I don't know my scriptures well enough to have any idea if this is from LDS doctrine or not, but I saw it and loved it. Its a theory I need to take into my own life. Definitely thought provoking eh?