《史记·七十列传·李斯列传》
让别人为自己献身，就自己尊贵而别人卑贱；让自己为别人献身，就自己卑贱而别人尊贵。
夫以人徇己，则己贵而人贱；以己徇人，则己贱而人贵。
When others make sacrifices for you, you are noble and they are humble; when you make sacrifices for others, you are humble and they are noble.