Fermat said he had a proof.

I know it's a rare privilege, but if one can really tackle something in adult life that means that much to you, then it's more rewarding than anything I can imagine.

That particular odyssey is now over. My mind is now at rest.

I tried to fit it in with some previous broad conceptual understanding of some part of mathematics that would clarify the particular problem I was thinking about.

However impenetrable it seems, if you don't try it, then you can never do it.

Fermat said he had a proof.

Mathematicians aren't satisfied because they know there are no solutions up to four million or four billion, they really want to know that there are no solutions up to infinity.

Always try the problem that matters most to you.

Well, some mathematics problems look simple, and you try them for a year or so, and then you try them for a hundred years, and it turns out that they're extremely hard to solve.

Pure mathematicians just love to try unsolved problems - they love a challenge.

The greatest problem for mathematicians now is probably the Riemann Hypothesis.

Perhaps the methods I needed to complete the proof would not be invented for a hundred years. So even if I was on the right track, I could be living in the wrong century.

I'm sure that some of them will be very hard and I'll have a sense of achievement again, but nothing will mean the same to me - there's no other problem in mathematics that could hold me the way that this one did.

I grew up in Cambridge in England, and my love of mathematics dates from those early childhood days.

I had this rare privilege of being able to pursue in my adult life, what had been my childhood dream.

I realized that anything to do with Fermat's Last Theorem generates too much interest.

The only way I could relax was when I was with my children.

The definition of a good mathematical problem is the mathematics it generates rather than the problem itself.

I don't believe Fermat had a proof. I think he fooled himself into thinking he had a proof.

But the best problem I ever found, I found in my local public library.

Just because we can't find a solution it doesn't mean that there isn't one.

We've lost something that's been with us for so long, and something that drew a lot of us into mathematics. But perhaps that's always the way with math problems, and we just have to find new ones to capture our attention.

There's also a sense of freedom. I was so obsessed by this problem that I was thinking about if all the time - when I woke up in the morning, when I went to sleep at night, and that went on for eight years.

I really believed that I was on the right track, but that did not mean that I would necessarily reach my goal.

Then when I reached college I realized that many people had thought about the problem during the 18th and 19th centuries and so I studied those methods.

I was so obsessed by this problem that I was thinking about it all the time - when I woke up in the morning, when I went to sleep at night - and that went on for eight years.

I loved doing problems in school.

It's fine to work on any problem, so long as it generates interesting mathematics along the way - even if you don't solve it at the end of the day.

I hope that seeing the excitement of solving this problem will make young mathematicians realize that there are lots and lots of other problems in mathematics which are going to be just as challenging in the future.

There are proofs that date back to the Greeks that are still valid today.

It could be that the methods needed to take the next step may simply be beyond present day mathematics. Perhaps the methods I needed to complete the proof would not be invented for a hundred years.

I loved doing problems in school. I'd take them home and make up new ones of my own. But the best problem I ever found, I found in my local public library. I was just browsing through the section of math books and I found this one book, which was all about one particular problem - Fermat's Last Theorem.

Pure mathematician just love to try unsolved problems they love a challenge.

If you pray enough for things, I am proof that they can happen. I feel like a kid on Christmas day now, every day. It's something I have wanted for a long time and I am as happy as anyone to be here. It is great to be back at my first love.

He who has laughter on his side has no need of proof.

Anything that won't sell, I don't want to invent. Its sale is proof of utility, and utility is success.

Everybody believes in psychiatry; it's supposed to be for our own good. Let psychiatry prove that anybody has an illness, and I'd concede, but there is no physical proof.

To have the sense of creative activity is the great happiness and the great proof of being alive.

The chief contribution of Protestantism to human thought is its massive proof that God is a bore.

Christmas to a child is the first terrible proof that to travel hopefully is better than to arrive.

In the first quarter of the nineteenth century the experimental proof for the interdependence of the composition and properties of chemical compounds resulted in the theory that they are mutually related, so that like composition governs like properties, and conversely.

I remember the time I was kidnapped and they sent a piece of my finger to my father. He said he wanted more proof.

From 1836, down to last year, there is no proof of the Government having any confidence in the duration of peace, or possessing increased security against war.

There are such beings as vampires, some of us have evidence that they exist. Even had we not the proof of our own unhappy experience, the teachings and the records of the past give proof enough for sane peoples.

Faith is not belief without proof, but trust without reservation.

Jim Cameron is proof that if you are good, you'll get promoted.

The best proof of the high quality of American beef is the continued negative BSE findings supported by the highest surveillance possible. The administration should be working to increase our surveillance of BSE, not scaling it back.

There has to be a measure of faith. That's what this business is all about: trusting in something that may never show up, that you have no concrete proof of.

A dislike of death is no proof of the want of religion. The instincts of nature shrink from it, for no creature can like its own dissolution. But though death is not desired, the result of it may be, for dying to the Christian is the way to life eternal.