The author mourns the sudden death of his wife Elise after 36 years together. He describes her as a brilliant mathematician, humanist, and mother of four who valued truth, beauty, and family. Despite her intellectual prowess, she was caring and creative, designing their home and nurturing their children. She believed mathematics was fundamentally human rather than purely formal, and often provided deep insights into his work. The author reflects on their complementary relationship and her remarkable life from student to accomplished mathematician.