Perhaps the depth of love can be calibrated by the number of different selves that are actively involved in a given relationship.
Carl SaganVirtually every major technological advance in the history of the human species - back to the invention of stone tools and the domestication of fire - has been ethically ambiguous.
Carl SaganI don't know the answer. Maybe no one knows. Maybe when you grow up, you'll be the first to find out.
Carl Sagan