I don't think that there is even the slightest doubt that we feel happy when we are free to explore. When we love and are loved. Exploration expands us, and love makes us merge. Love and exploration also go hand in hand. We can't explore something or somebody unless we love that thing or person. Einstein can't explore Quantum Physics so deeply and with so much dedication unless he is deeply in love with the subject. But biology plays its own role. We feel vulnerable. We want the company of somebody who can take care of us when we fall ill and when things do not turn our way. We form many different relationships in search of security. Give and take is the basis of most of these relationships. We become ambitious and feel that "X" amount of money and power will make us secure forever, which never happens. Probably, intelligence demands that we take stock of the actual needs for survival so that the time and energy spent on these things may be minimised, and we get ...