Ethics comes to life in the real world when we encounter others. For some philosophers of ethics (Emmanuel Levinas for example) the awareness that we share our world with other beings who are like us in some ways and differ from us in other ways, and who make demands of us simply by existing, is the ground-zero foundation of ethics. Is there a difference between the face to face encounter with others, and the vague awareness that others exist somewhere out there in the world?
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