Brod discovered 613 sadnesses, each perfectly unique, each a singular emotion, no more similar to any other sadness than to anger, ecstasy, guilt, or frustration. Mirror Sadness. Sadness of Domesticated Birds. Sadness of Being Sad in front of One's Parent. Humor Sadness. Sadness of Love Without Release.
Jonathan Safran Foer (2013). “Everything Is Illuminated”, p.79, Houghton Mifflin Harcourt