The Denial of Death

 ...The lower animals, of course, spared this painful contradiction, as they lack a symbolic identity and the self-consciousness that goes with it. They merely act and move reflexively as they are driven by their instincts. If they pause at all, it is only a physical pause; inside they are anonymous, and even their faces have no name. They live in a world without time, pulsating, as it were, in a state of dumb being...The knowledge of death is reflective and conceptual, and animals are spared it.