Pure mathematicians just love to try unsolved problems - they love a challenge.
The only way I could relax was when I was with my children.
Just because we can't find a solution it doesn't mean that there isn't one.
That particular odyssey is now over. My mind is now at rest.
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.
I never use a computer.