Stephen Wolfram wrote a tribute to his wife Elise Cawley, who died suddenly after 36 years of marriage. Elise was a mathematician with a passion for beauty, truth, and humanism, and the couple shared a deep connection based on their love of thematic thinking and aesthetics. The article describes their meeting, their life together, and Elise's accomplishments as a mathematician and a person. Elise's death was a shock to Stephen, and he finds comfort in the fact that she died instantly, without suffering.