The Hymn of the Universe by Teilhard de Chardin

"Only love can bring individual beings to their perfect completion, as individuals, by uniting them one with another, because only love takes possession of them and unites them by what lies deepest within them. This is simply a fact of our everyday experience. For indeed at what moment do lovers come into the most complete possession of themselves if not when they say that they are lost in one another? And is not love all the time achieving - in couples, in teams, all around us - the magical and reputedly contradictory feat of personalizing through totalizing? And why should not what is thus daily achieved on a small scale be repeated one day on world-wide dimensions?

Humanity, the spirit of the earth, the synthesis of individuals and peoples, the paradoxical conciliation of the element with the whole, of the one with the many: all these are regarded as utopian fantasies, yet they are biologically necessary; and if we would see them made flesh in the world what more need we do than imagine our power to love growing and broadening, till it can embrace the totality of human beings and of the earth?"