From The Art of Happiness: A Handbook for Living, by HH the Dalai Lama and Howard C Cutler, MD:
I believe that the very purpose of our life is to seek happiness. That is clear. Whether one believes in religion or not, whether one believes in this religion or that religion, we all are seeking something better in life. So, I think the very motion of our life is towards happiness.
-His Holiness the Dalai Lama
Imperfect Happiness 