亲爱的同学们：

2026年盛夏八月，适逢我们毕业四十周年。我们诚挚倡议，全体同学暂别繁忙，于首都北京某静谧山庄重聚，共赴一场跨越时空的约定。

四十年韶华匆匆，但青春从未远去。你是否还记得数学楼里的灯火，三角黑板上的公式，以及未名湖畔的晨读与畅谈？那是我们共同的黄金时代，是我们精神家园的起点。我们深深怀念授业解惑的恩师，是他们以智慧与人格，为我们点亮了通往知识与真理的道路。

四十年人生旅途，我们奔赴四方，在各自的岗位上耕耘奉献。我们由衷感谢这个伟大的时代与国家，是社会的蓬勃发展，为我们提供了施展才华的广阔天地。无论我们走得多远，北师大数学人求真务实、追求卓越的烙印始终清晰。

然而，最珍贵的，莫过于历经岁月沉淀的同窗情谊。那曾一起钻研难题的默契，一起挥洒汗水的球场，一起分享心事的夜话，是任何事物都无法取代的温暖财富。此情不因久别而疏离，反因时光的酿造而愈发醇厚。

让我们在2026年的初秋，回到我们梦想启航之地附近，寻一处清幽，放下纷扰，执手相看，共话当年。重温那段纯粹而热烈的青春，分享四十年人生的感悟与风景，将同窗之谊谱写成未来岁月里最动人的定理。

敬请各位同学预留时间，期盼相聚，共叙情长！

北京师范大学数学系82级毕业40周年纪念活动筹备组

敬启

2026年4月

Dear classmates,

In August of the summer of 2026, we will celebrate the 40th anniversary of our graduation. We sincerely propose that all classmates set aside your busy schedules and reunite at a tranquil mountain resort in Beijing, to fulfill a promise that transcends time and space.

Forty years have passed in a flash, yet our youth never truly left. Do you still remember the lights in the mathematics building, the formulas on the triangular blackboard, and the morning readings and heartfelt conversations by the Weiming Lake? That was our shared golden age, the starting point of our spiritual home. We deeply cherish the memory of our esteemed teachers, who illuminated our path to knowledge and truth with their wisdom and character.

Over the past four decades, we have journeyed far and wide, contributing in our respective posts. We are profoundly grateful for this great era and our nation, as the thriving society has provided us with vast opportunities to realize our potential. No matter how far we have traveled, the imprint of BNU mathematicians—seeking truth, pragmatism, and excellence—remains clear.

Yet, the most precious treasure is the bond of classmates, tempered by the passage of time. The默契 in solving difficult problems, the sweat on the sports field, and the late-night heart-to-heart talks are irreplaceable warmth. This bond has not weakened with distance but has grown richer with the aging of time.

Let us, in the early autumn of 2026, return near where our dreams began. In a serene setting, let us set aside distractions, hold hands, and reminisce. Let us relive that pure and passionate youth, share the insights and scenery of forty years, and compose our friendship into the most moving theorem of the years to come.

Please reserve the time, and we look forward to reuniting and sharing our stories!

Preparatory Committee for the 40th Anniversary Reunion of the Class of 1982, Department of Mathematics, Beijing Normal University

Respectfully Submitted

April 2026