The Nature of Human Persons

Offers a metaphysical investigation of the composition of the human essence - that is, with what is a human being identical or what types of parts are necessary for a human being to exist: an immaterial mind, a physical body, a functioning brain, a soul? It also considers the criterion of identity for a human being across time and change.

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For a human being to exist, does it require an immaterial mind, a physical body, a functioning brain, a soul?


Is there a shared nature common to all human beings? What essential qualities might define this nature? These questions are among the most widely discussed topics in the history of philosophy and remain subjects of perennial interest and controversy. The Nature of Human Persons offers a metaphysical investigation of the composition of the human essence.


Jason Eberl also considers the criterion of identity for a developing human being—that is, what is required for a human being to continue existing as a person despite undergoing physical and psychological changes over time? Eberl places Thomas Aquinas’s account of human nature into direct comparison with several prominent contemporary theories: substance dualism, emergentism, animalism, constitutionalism, four-dimensionalism, and embodied mind theory. These theories inform conclusions regarding when human beings first come into existence (at conception, during gestation, or after birth), how we ought to define death for human beings, and whether (and if so how) human beings may survive death. Ultimately, The Nature of Human Persons argues that the Thomistic account of human nature addresses the matters of human nature and survival more holistically than other theories and offers a cohesive portrait of one’s continued existence from conception through life to death and beyond.