Reasons and Persons Book Summary

In 'Reasons and Persons,' Derek Parfit delves into the intricate nature of identity, morality, and rationality. He challenges conventional notions of self and argues that personal identity is not as fixed as we believe. Parfit's exploration raises tantalizing questions about what it means to be a person and how our decisions shape our lives. With compelling thought experiments, he invites readers to reconsider their beliefs about ethics and future generations. This groundbreaking work leaves an indelible mark on philosophical thought, compelling us to reflect deeply on our choices and connections.

By Derek Parfit

Published: 1987

"We can often make our lives better by acting for the future, but we should also remember that our decisions now shape the lives and identities of those who will come after us."

Book Review of Reasons and Persons

Part 1 discusses ways in which theories about morality and rationality can be self-defeating and Part 2 the relations between what a single person can rationally want or do at different times, and what different people can rationally want or do. Parts 3 & 4 tackle personal identity and our obligations to future generations.

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We can often make our lives better by acting for the future, but we should also remember that our decisions now shape the lives and identities of those who will come after us.

Reasons and Persons

By Derek Parfit