Derek Parfit Quotes

Derek Antony Parfit was a British philosopher who specialised in personal identity, rationality, and ethics. He is widely considered one of the most important and influential moral philosophers of the late 20th and early 21st centuries.Parfit rose to prominence in 1971 with the publication of his first paper, "Personal Identity". His first book, Reasons and Persons , has been described as the most significant work of moral philosophy since the 1800s. His second book, On What Matters , was widely circulated and discussed for many years before its publication.

For his entire academic career, Parfit worked at Oxford University, where he was an Emeritus Senior Research Fellow at All Souls College at the time of his death. He was also a visiting professor of philosophy at Harvard University, New York University, and Rutgers University. He was awarded the 2014 Rolf Schock Prize "for his groundbreaking contributions concerning personal identity, regard for future generations, and analysis of the structure of moral theories." Wikipedia  

✵ 11. December 1942 – 1. January 2017
Derek Parfit photo

Works

Reasons and Persons
Reasons and Persons
Derek Parfit
Derek Parfit: 24   quotes 1   like

Famous Derek Parfit Quotes

“My life seemed like a glass tunnel, through which I was moving faster every year, and at the end of which there was darkness. When I changed my view, the walls of my glass tunnel disappeared. I now live in the open air.”

Source: Reasons and Persons (1984), p. 281
Context: Is the truth depressing? Some may find it so. But I find it liberating, and consoling. When I believed that my existence was a further fact, I seemed imprisoned in myself. My life seemed like a glass tunnel, through which I was moving faster every year, and at the end of which there was darkness. When I changed my view, the walls of my glass tunnel disappeared. I now live in the open air. There is still a difference between my life and the lives of other people. But the difference is less. I am less concerned about the rest of my own life, and more concerned about the lives of others.

“We are paternalists when we make someone act in his own interests.”

Source: Reasons and Persons (1984), p. 321

“Why shouldn’t I eat toothpaste? It’s a free world. Why shouldn’t I chew my toenails? i happen to have trodden in some honey. Why shouldn’t I prance across central park with delicate sideways leaps? I know what your answer will be: “it isn’t done.””

But it’s no earthly use just saying it isn’t done. If there’s a reason why it isn’t done, give the reason—if there’s no reason, don’t attempt to stop me doing it. All other things being equal, the mere fact that something “isn’t done” is in itself an excellent reason for doing it.

p.101
Reasons and Persons (1984)

Derek Parfit Quotes about people

“Even if moral truths cannot affect people, they can still be truths.”

Source: Derek Parfit, ‘Reasons and Motivation’, Proceedings of the Aristotelian Society, supp. vol. 71 (1997), p. 111

Derek Parfit Quotes about the truth

Derek Parfit Quotes

“Certain actual sleeping pills cause retrograde amnesia. It can be true that, if I take such a pill, I shall remain awake for an hour, but after my night’s sleep I shall have no memories of the second half of this hour. I have in fact taken such pills, and found out what the results are like. Suppose that I took such a pill nearly an hour ago. The person who wakes up in my bed tomorrow will not be psychologically continuous with me as I was half an hour ago. I am now on psychological branch-line, which will end soon when I fall asleep. During this half-hour, I am psychologically continuous with myself in the past. But I am not now psychologically continuous with myself in the future. I shall never later remember what I do or think or feel during this half-hour. This means that, in some respects, my relation to myself tomorrow is like a relation to another person. Suppose, for instance, that I have been worrying about some practical question. I now see the solution. Since it is clear what I should do, I form a firm intention. In the rest of my life, it would be enough to form this intention. But, when I am no this psychological branch-line, this is not enough. I shall not later remember what I have now decided, and I shall not wake up with the intention that I have now formed. I must therefore communicate with myself tomorrow as if I was communicating with someone else. I must write myself a letter, describing my decision, and my new intention. I must then place this letter where I am bound to notice it tomorrow. I do not in fact have any memories of making such a decision, and writing such a letter. But I did once find such a letter underneath my razor.”

Source: Reasons and Persons (1984), pp. 287-288

“Though everything is identical with itself, only I am me.”

Source: Reasons and Persons (1984), p. 25

“Why do we save the larger number? Because we do give equal weight to saving each. Each counts for one. That is why more count for more.”

Source: Derek Parfit, ‘Innumerate Ethics’, Philosophy and Public Affairs, vol. 7, no. 4 (Summer, 1978), p. 301

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