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

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.

I don't have to work on it. I'm naturally a writer. The rapping and writing, they can go hand-in-hand - but rapping is an art that you have to practice and master, so I worked at it for a long time.

At the moment we're trying to keep what we've learnt. Because we learnt a terrific amount with 'Deep Purple In Rock,' it took six months to make that album: we think it paid off, really. I can honestly say that it's the first album we've been 100 percent satisfied with; it gave us a hell of a lot of confidence.

Our government has failed us. From the billion-dollar bailouts to the 'stimulus' package that failed to stimulate to the government takeover of health care, you cried 'Stop!'... but the Democratic Majority in Washington has refused to listen.

Making movies is about creating illusions, and they can be subtle illusions, but it's all a cumulative effect as you make these little tweaks. It kinda adds up to something, hopefully.

I guess every single word I've ever said is going to be dissected now.

I can feel my body is starting to get tired, all that training, which I've been doing three or four times a week since I was eight, and recovery is taking longer.

By the time I was in the fourth grade, I sounded exactly like my father on the phone.

Never sit at a table you can't walk away from.

When a dragonfly flutters by, you may not realize, but it's the greatest flier in nature. It can hover, fly backwards, even upside down.

There's a massive opportunity as more and more millennials and others in cities switch over from car ownership to transportation as a service. They are picking Lyft, and we want to stay focused on that big opportunity.

I have absolutely no regret about my vote against this war. The same questions remain. The cost in human lives, the cost to our budget, probably 100 billion. We could have probably brought down that statue for a lot less.

As an actor, there's very little you can do if people don't want to see you. Just getting yourself into the room to audition is tough.

I've always been involved with all aspects of my careers. Being behind the camera seems as natural as in front.

I believe in creative control. No matter what anyone makes, they should have control over it.

I was working for the Socialist International, after I left university in 1959, as a researcher.

The first step towards vice is to shroud innocent actions in mystery, and whoever likes to conceal something sooner or later has reason to conceal it.