A world without love is a deadly place.

Framed in Fisher’s characteristic emphasis on love as a fundamental human drive, the line argues that love is not a decorative emotion but a life-sustaining force. “Deadly” suggests both psychological and social consequences: without bonds of attachment, empathy, and care, individuals can fall into despair and communities can become harsher, more violent, and less cooperative. The quote also resonates with Fisher’s scientific approach to romance and attachment—implying that love has evolutionary and neurobiological functions that support survival, health, and meaning. In short, the statement treats love as a prerequisite for a livable human world, not merely a private sentiment.