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The question

What trait do you most dislike in other people?

Originally asked

The Guardian, to a different person each week, The Q&A

A verbatim standing question in The Guardian's rotating Q&A questionnaire, documented across respondents and years.

You answer as yourself. Nobody on FLAPSS answers as anybody else.

RF
Richard Feynman

Theoretical physicist; Nobel laureate in Physics, 1965

Recorded said elsewhere, not written here
I would like to add something that’s not essential to the science, but something I kind of believe, which is that you should not fool the layman when you’re talking as a scientist.

Caltech commencement address, Engineering and Science / Caltech Magazine, 1974 source ↗

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I’m irritated by critics and academics who dismiss poetry that is popular, comprehensible or humorous.
Recorded The Q&A, The Guardian, 10 January 2026 source ↗

More from Richard Feynman

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Question How does a new piece of work usually begin for you? Craft & work
Then I had another thought: Physics disgusts me a little bit now, but I used to enjoy doing physics.  Why did I enjoy it?  I used to play with it.  I used to do whatever I felt like doing—it didn’t have to do with whether it was important for the development of nuclear physics, but whether it was interesting and amusing for me to play with.
Recorded Excerpt from “Surely You’re Joking, Mr. Feynman”, Engineering and Science / Caltech Magazine, 1985 source ↗
Question What bad recommendations do people in your field repeat too often? Craft & work
For example, I was a little surprised when I was talking to a friend who was going to go on the radio. He does work on cosmology and astronomy, and he wondered how he would explain what the applications of this work were. "Well," I said, "there aren't any." He said, "Yes, but then we won't get support for more research of this kind." I think that's kind of dishonest. If you're representing yourself as a scientist, then you should explain to the layman what you're doing—and if they don't want to support you under those circumstances, then that's their decision.
Recorded Caltech commencement address, Pasadena, California, Caltech Engineering and Science (Caltech Library archive), 1 June 1974 source ↗
Question If you could put a message on a giant billboard, what would it say and why? Time & hindsight
The first principle is that you must not fool yourself—and you are the easiest person to fool. So you have to be very careful about that. After you've not fooled yourself, it's easy not to fool other scientists. You just have to be honest in a conventional way after that.
Recorded Caltech commencement address, Pasadena, California, Caltech Engineering and Science (Caltech Library archive), 1 June 1974 source ↗
Question What is an unusual habit or small pleasure you are oddly fond of? Daily life
one of my diseases, one of my things in life, is that anything that is secret I try to undo. And so the locks to those filing cabinets represented a challenge to me. How the hell to open them? So I worked and worked on them. There are all kinds of stories about how you can feel the numbers and listen to things and so on. That's true; I understand it very well - for old- 19 fashioned safes. But these had a new design so that nothing would be pushing against the wheels while you were trying them, and none of the old methods would work. I read books by locksmiths, which always say in the beginning how they opened the locks when the safe is under water and the woman in it is drowning or some-thing, and the great locksmith opened the safe. And then in the back they tell you how they do it, and they don't tell you anything sensible. It doesn't sound like they could really open safes that way — like guess the combination on the basis of the psychology of the person who owns it! So I always figured they were keeping the method a secret, and like a kind of disease, I kept working on these things until I found out a few things. First, I found out how big a range you need to open the combination, how close you have to be. And then I invented a system by which you could try all the necessary combinations - 8,000, as it turned out, because the woman DROWNING عزه Books are always telling how the great locksmith opens the safe under water when the woman in it is drowning. 20 you could be within two of every number. And then I worked out a scheme by which I could try numbers without altering a number that I had already set, by correctly moving the wheels, so that I could try all the combinations in eight hours. And then finally I discovered (this took me about two years of researching) that it's easy to take the last two numbers of the combination off the safe if the safe is open. If the drawer was pulled out, you could turn the number and see the bolt go up and play around and find out what number it comes back at, and stuff like that. With a little trickery, you can get the combination off. So I used to practice it like a cardsharp practices cards, you know - all the time. Quicker and quicker and more and more unobtrusively I would come in and talk to some guy. I'd sort of lean against his filing cabinet, and you wouldn't even notice I'm doing any-thing. I'm not doing anything— just playing with the dial, that's all, just playing with the dial. But all the time I was taking the two numbers off! And then I would go back to my office and write the two numbers down, the last two numbers of the three. Now, if you have the last two numbers, it takes just a minute to try for the first number; there's only 20 possibilities, and it's open. OK? It takes about three minutes to open a safe if you know the last two numbers. So I got an excellent reputation for safe-cracking.
Recorded Engineering and Science / Caltech Magazine, 1976 source ↗

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