Like many philosophers before her, Simone de Beauvoir ties freedom and ethics together. An ethical norm is not the sort of thing that can be imposed from "outside" of a person but most come from that person's own reason and free choice. In this way, a man may only be truly ethical if he is free. For Beauvoir, man exists in a paradoxical state of striving to transcend his being despite being trapped into certain social roles by the world. Being free requires not being trapped into those roles, such as the role of the Serious Man who locates his values outside of himself.