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.

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.

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.

Pa did not like a country so old and worn out that the hunting was poor. He wanted to go west. For two years he had wanted to go west and take a homestead, but Ma did not want to leave the settled country.

In America the President reigns for four years, and Journalism governs forever and ever.

As long as a woman can look ten years younger than her own daughter, she is perfectly satisfied.

My parents have a wonderful marriage, for many years. But I can't commit myself for such a long time.

With care, and skill, and cunning art, She parried Time's malicious dart, And kept the years at bay, Till passion entered in her heart and aged her in a day!

What connects two thousand years of genocide? Too much power in too few hands.

Over the past two years, the House has passed more than 50 measures focused on stimulating the economy and expanding opportunities for American workers. The tax relief provisions in this package have been an important part of our pro-growth agenda.

I heard what was said of the universe, heard it and heard it of several thousand years; it is middling well as far as it goes - but is that all?

I'm not a career politician. I spent 30 years in business. I can tell you that people in California have had it with career politicians: they are done.

I had years of experience that I still needed to accumulate and go through.

Jazz came to America three hundred years ago in chains.

Sir Hugh Greene is the man I hold most responsible for the state of our country today. For 11 years hardly a week went by without a sniping reference to me. And he gave access to anyone who was prepared to say anything morally subversive.