There can be very little of present-day science and technology that is not dependent on complex numbers in one way or another. — Keith Devlin Copy Share Image
The whole apparatus of the calculus takes on an entirely different form when developed for the complex numbers. — Keith Devlin Copy Share Image
Indeed, nowadays no electrical engineer could get along without complex numbers, and neither could anyone working in aerodynamics or fluid dynamics. — Keith Devlin Copy Share Image
I saw the first one [video with Hans Rosling ] when he did - I think it was his first one - in 2006,… — Keith Devlin Copy Share Image
“Arithmetic and number theory study patterns of number and counting. Geometry studies patterns of shape. Calculus allows us to handle patterns of motion. Logic… — Keith Devlin Copy Share Image
I firmly believe that mathematics does not exist outside of humans. It is something we, as a species, invent. — Keith Devlin Copy Share Image
Hans Rosling typically would go into the room, and he would ask the audience questions. Often they had to answer them with clickers or… — Keith Devlin Copy Share Image
Some of the justifiable critiques has been by - been so successful in telling this story, you know, there's a danger of saying, oh,… — Keith Devlin Copy Share Image
Though the structures and patterns of mathematics reflect the structure of, and resonate in, the human mind every bit as much as do the… — Keith Devlin Copy Share Image
I certainly do care about measuring educational results. But what is an 'educational result?' The twinkling eyes of my students, together with their heartfelt… — Keith Devlin Copy Share Image
In fact, we tend to think things have been getting much worse. In fact, over the last 50 years, almost everything in the world… — Keith Devlin Copy Share Image
In fact, when you try to use [Hans Rosling] data to predict the future, all sorts of problems arise. But what it does do… — Keith Devlin Copy Share Image
Outside observers often assume that the more complicted a piece of mathematics is, the more mathematicians admire it. Nothing could be further from the… — Keith Devlin Copy Share Image
Mathematical thinking is not the same as doing mathematics - at least not as mathematics is typically presented in our school system. School math… — Keith Devlin Copy Share Image
![“I saw the first one [video with Hans Rosling ] when he did - I think it was his first one - in 2006, a TED Talk. And for the first time in my life, I thought here's someone who can take statistics that most people regard as dull and boring and bring it alive.” quote by Keith Devlin](https://sms4smile.com/quotes/img-quotes/f8c/keith-devlin-19829_alive_i-saw-the-first-one-video-with-hans-rosl_101875.jpg)
![“Hans Rosling typically would go into the room, and he would ask the audience questions. Often they had to answer them with clickers or raising their hands or something. We get [data] wrong because 50 years ago that wasn't the case and because we haven't had these graphics we don't realize that over…” quote by Keith Devlin](https://sms4smile.com/quotes/img-quotes/740/keith-devlin-19829_answers_hans-rosling-typically-would-go-into-the_518165.jpg)
![“Some of the justifiable critiques has been by - been so successful in telling this story, you know, there's a danger of saying, oh, well, you know, we don't need to worry about this because that's absolutely not the case. What [Hans] Rosling is doing is showing us an overall global trend, which in…” quote by Keith Devlin](https://sms4smile.com/quotes/img-quotes/3dd/keith-devlin-19829_bad-thing_some-of-the-justifiable-critiques-has-be_763450.jpg)
![“In fact, we tend to think things have been getting much worse. In fact, over the last 50 years, almost everything in the world on a global scale has got better. And the way that Hans [ Rosling] did this - it was very good.” quote by Keith Devlin](https://sms4smile.com/quotes/img-quotes/473/keith-devlin-19829_facts_in-fact-we-tend-to-think-things-have-bee_1076728.jpg)
![“In fact, when you try to use [Hans Rosling] data to predict the future, all sorts of problems arise. But what it does do is say, hey, just catch your breath a minute and see what's really been going on. We do have reason to feel good about the fact we've made progress.” quote by Keith Devlin](https://sms4smile.com/quotes/img-quotes/1a8/keith-devlin-19829_arise_in-fact-when-you-try-to-use-hans-rosling_1084549.jpg)
