Summer Night Wind and Unsent Letters

At the end of the summer of 2019, the camphor trees in Qingcheng Middle School were still holding the last trace of heat. The fragrance of the pen and ink of the liberal arts students in the south building and the formula papers of the science students in the north building were quietly entwined in the evening breeze. There are unsent thoughts hidden in Lin Wanxing's compositions. Those metaphors about "cool and bright light" always feel slightly hot when writing; Jiang Yu's draft paper is full of problem-solving steps, but in the corner of a certain page, a symbol of tenderness that does not belong to a science student unexpectedly appears. The two people, who have different paths in liberal arts and science, got close to each other in the warm light of the library because they were reviewing each other's essays and preparing for a competition. He used geometric logic to help her break down mathematical problems, and she used the warmth of words to describe for him the father's love hidden in the details, and the letter, which was written and revised, was always stuck at the deepest footer of the composition. The summer night wind blows over the ranking list on the bulletin board and picks up the corners of unsent letters, but no one knows what kind of trace this encounter that started with words and formulas will leave in youth - is it the regret of passing by, or the response that will eventually arrive?