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

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

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

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

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

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.

Always try the problem that matters most to you.