Portrait of Derek Parfit

Derek Parfit

1942–2017 · Analytic Ethics · Prominent

Parfit was a British philosopher at All Souls in Oxford. He argued in Reasons and Persons in 1984 that no deep further fact makes you the same person you were at ten. You are a bundle of linked experiences, and identity is not what matters. He reached that by argument, then found the Buddha had said the same. He held in On What Matters in 2011 that Kantians, utilitarians and contractualists climb one mountain from different sides.

Signature

The position Parfit is most identified with in the Profiler:

Identity
strongly leans Changing
Ethics Basis
Categorical Imperative / Non-Utilitarian Consequentialism

Positions on the 1 axes the sources answer

Identity
strongly leans Changing (91 on a 0–100 scale from Unchanging to Changing)

19 of 20 axes are left blank: the sources do not answer them, or Parfit refused the framing. Nothing is imputed; a blank is not a middling score.

Foundational questions

Theology
Atheism
What is your position on the existence and nature of God or gods?
Good and Evil
Moral Realism
What is the fundamental nature of good and evil?
Knowledge
Intuition
What is the ultimate foundation of knowledge?
Ethics Basis
Categorical Imperative / Non-Utilitarian Consequentialism
What is the ultimate basis of ethics?
Human Nature
No-Self
What is human nature?
Open Parfit in the ProfilerTake the test and compare yourself

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