A task becomes a duty from the moment you suspect it to be an essential part of that integrity which alone entitles a man to assume responsibility.

  • -- Dag Hammarskjold 达格·哈马舍尔德

从你怀疑一项任务是一个人承担责任的正直品质的重要组成部分的那一刻起,它就变成了一种责任。