Hate may be the most dangerous of all emotions for the survival of the planet. The author addresses two questions: What obscures hate when it is actually present? and What masquerades as hate but isn't? Using illustrations from a wide range of fields, the author contends that discerning hate is both essential and far trickier than we think. She concludes by asserting that overcoming hate requires imagination. We must learn to imagine a world without hate and unimagine a world with hate.