discretion is the better part of valour
谨慎是勇敢的重要组成部分。
书面/口语·劝人谨慎行事
英文释义
to act with caution and prudence is often the wisest course of action, especially in dangerous or risky situations
例句
He decided not to confront the bully, knowing that discretion is the better part of valour.
典故来源
源自莎士比亚戏剧《亨利四世》，原指谨慎比鲁莽的勇敢更明智，后成为常见谚语。