这段800多年前朱、蔡二位圣贤探讨学问的故事，流传至今。这则典故，当地无人不晓，但对外人而 言，确系新鲜。不少人都感叹：面对古代圣贤如此专心、严谨的治学精神，再对比今天的学习条件，心 里油然升起的，不只是敬重，还有几分惭愧呢！ 史料介绍，出身当地望族的书生蔡元定，无意中获知大理学家朱熹到当地乡间读书授徒，连忙前往拜 谒。谁知两人交谈片刻，便一见如故，接着彻夜对榻讲论，次日竟不忍分别。于是，蔡元定邀请朱熹到 他的书院讲学，朱熹欣然应约。谁知，某日朱熹去后，深为当地山川形胜吸引，当下决定在附近选址建 舍，后来便举家在这里住了下来。 朱熹住的地方名云谷山，与蔡元定住的西山遥相呼应，相距数里。为了便于联络，朱熹与蔡元定约定在 各自山头建台悬灯，并相约，看到灯明，表示治学正常，若读书中遇到难题，可将灯灭了，翌日往来论 学解难。因此，凡灯灭次日，蔡元定便到朱熹这边请教，朱熹也必留他数日，共同探讨。白天众学子将 讲堂围个水泄不通，听师生二人一问一答，引经据典，好不精彩；入夜，师生二人又对榻讲论，通宵达 旦。 后来，蔡元定也成了南宋著名的理学家、律吕学家。历史上，古人勤奋学习、潜心治学的故事很多，如 凿壁偷光、燃薪夜读、囊萤 ...

Group 1 - The core message of graduation speeches emphasizes the importance of maintaining curiosity, passion, and a sense of purpose as graduates transition into society [1][2] - Recent graduation speeches reflect a shift towards addressing the real needs of contemporary youth, focusing on emotional resonance rather than a singular definition of success [2][3] - The metaphor of life as a river suggests that the journey is about exploring unknown possibilities rather than adhering to predetermined paths, encouraging graduates to embrace courage and enthusiasm [3] Group 2 - University leaders highlight the significance of rationality and independence in navigating a complex and rapidly changing world, urging graduates to contribute positively to society [2] - The speeches convey a sense of warmth and care, providing graduates with guidance and support as they face uncertainties in their future endeavors [1][2] - The idea that crises can lead to new opportunities is emphasized, encouraging graduates to remain hopeful and proactive in their pursuits [2]