Human beings are irreducibly separate individual beings
Human beings are conscious individuals. Awareness of individuality gives rise to questions about the nature of human existence. How individual are we? If we examine our internal subjective experience of thoughts, feelings, and sensory perception we realize that we are aware of them but that others around us are not aware of our inner experience in the same way that we are. When we examine our actions we realize that we alone can initiate movement or speech even though we do not know exactly how we do it. When a person is born or when a person dies it appears as if that event is strictly personal, that individual alone is born and dies. On the level of our experience it is impossible to argue away the fact of our individuality.