He is a 36-year-old mathematics professor and she is a 27-year-old curator. He was nine years older than her and had nothing but mathematics, so he chose to guard her silently - blocking negotiations for her, remembering her habits, and drawing her silhouette on the edge of the manuscript paper. She later discovered that this cold-blooded man had left every word she had written in the folder. When the outside storm swept through, he said on the rooftop on a snowy night: "You are the only theorem I don't need to prove."
The two worlds have since intersected.
