入竟而问禁，入国而问俗，入门而问讳。
释义Explanation
这句话出自《礼记·曲礼上》，‘竟’通‘境’，指疆界。它告诫人们进入一个地区、国家或家庭时，要先了解当地的禁令、风俗和避讳，以免因无知而触犯。这体现了儒家‘敬’与‘慎’的礼学精神，强调对他者规则与文化的尊重。在古代，这既是外交与社交的基本准则，也是个人修养的体现。今天，它依然提醒我们在面对新环境时，应先观察、询问、学习，再行动。
This saying from the Book of Rites advises that upon entering a territory, state, or household, one should first learn its prohibitions, customs, and taboos. The character '竟' is an ancient form of '境' (border). This principle reflects Confucian emphasis on respect and prudence, urging awareness of others' rules and culture. In ancient times, it was a basic norm for diplomacy and daily etiquette. Today, it still reminds us to observe, ask, and learn before acting in unfamiliar environments.
使用场景Usage
一位跨国公司的员工被派往海外工作，或进入一家新公司任职。他先阅读当地法律法规、了解公司文化和潜规则，并询问同事哪些话题或行为是忌讳的。这种‘入境问禁’的做法帮助他快速融入团队，避免不必要的摩擦。这句古文提醒我们，真正的自信不是贸然行事，而是在尊重差异的前提下从容应对。
An employee sent abroad or joining a new company first studies local laws, corporate culture, and unwritten rules, asking colleagues which topics or behaviors are off-limits. This 'asking before acting' approach helps them integrate smoothly and avoid friction. The quote reminds us that confidence lies not in rushing ahead, but in responding gracefully while respecting differences.